7391406 has 24 divisors (see below), whose sum is σ = 16250472. Its totient is φ = 2239600.

The previous prime is 7391401. The next prime is 7391407. The reversal of 7391406 is 6041937.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7391401) 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 11 ways as a sum of consecutive naturals, for example, 4365 + ... + 5816.

It is an arithmetic number, because the mean of its divisors is an integer number (677103).

Almost surely, 2^7391406 is an apocalyptic number.

7391406 is an abundant number, since it is smaller than the sum of its proper divisors (8859066).

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

7391406 is a wasteful number, since it uses less digits than its factorization.

7391406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10208 (or 10197 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 7391406 is about 2718.7140342449. The cubic root of 7391406 is about 194.7940494903.

It can be divided in two parts, 739 and 1406, that added together give a triangular number (2145 = T₆₅).

The spelling of 7391406 in words is "seven million, three hundred ninety-one thousand, four hundred six".