7420724001 has 6 divisors (see below), whose sum is σ = 10718823570. Its totient is φ = 4947149328.

The previous prime is 7420723963. The next prime is 7420724137. The reversal of 7420724001 is 1004270247.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6520724001 + 900000000 = 80751^2 + 30000^2 .

It is not a de Polignac number, because 7420724001 - 2¹⁷ = 7420592929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7420724401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 412262436 + ... + 412262453.

It is an arithmetic number, because the mean of its divisors is an integer number (1786470595).

Almost surely, 2^7420724001 is an apocalyptic number.

It is an amenable number.

7420724001 is a deficient number, since it is larger than the sum of its proper divisors (3298099569).

7420724001 is a wasteful number, since it uses less digits than its factorization.

7420724001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824524895 (or 824524892 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 7420724001 is about 86143.6242620427. The cubic root of 7420724001 is about 1950.5125981799.

Adding to 7420724001 its reverse (1004270247), we get a palindrome (8424994248).

The spelling of 7420724001 in words is "seven billion, four hundred twenty million, seven hundred twenty-four thousand, one".