7426740 has 48 divisors (see below), whose sum is σ = 21309120. Its totient is φ = 1931520.

The previous prime is 7426733. The next prime is 7426747. The reversal of 7426740 is 476247.

It is an interprime number because it is at equal distance from previous prime (7426733) and next prime (7426747).

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 7426698 and 7426707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7426747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 951 + ... + 3969.

It is an arithmetic number, because the mean of its divisors is an integer number (443940).

Almost surely, 2^7426740 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7426740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10654560).

7426740 is an abundant number, since it is smaller than the sum of its proper divisors (13882380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7426740 is a wasteful number, since it uses less digits than its factorization.

7426740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 3070 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 7426740 is about 2725.2045794766. The cubic root of 7426740 is about 195.1039550908.

The spelling of 7426740 in words is "seven million, four hundred twenty-six thousand, seven hundred forty".