7204400040 has 64 divisors (see below), whose sum is σ = 21742680960. Its totient is φ = 1909664000.

The previous prime is 7204400011. The next prime is 7204400057. The reversal of 7204400040 is 400044027.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159711 + ... + 199790.

It is an arithmetic number, because the mean of its divisors is an integer number (339729390).

Almost surely, 2^7204400040 is an apocalyptic number.

It is an amenable number.

7204400040 is an abundant number, since it is smaller than the sum of its proper divisors (14538280920).

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

7204400040 is a wasteful number, since it uses less digits than its factorization.

7204400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359682 (or 359678 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 7204400040 is about 84878.7372667619. The cubic root of 7204400040 is about 1931.3720402136.

Adding to 7204400040 its reverse (400044027), we get a palindrome (7604444067).

The spelling of 7204400040 in words is "seven billion, two hundred four million, four hundred thousand, forty".