7040400 has 60 divisors (see below), whose sum is σ = 22556592. Its totient is φ = 1877120.

The previous prime is 7040389. The next prime is 7040413. The reversal of 7040400 is 40407.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 7040400.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1734 + ... + 4133.

Almost surely, 2^7040400 is an apocalyptic number.

It is an amenable number.

7040400 is an abundant number, since it is smaller than the sum of its proper divisors (15516192).

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

7040400 is a wasteful number, since it uses less digits than its factorization.

7040400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5888 (or 5877 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 15.

The square root of 7040400 is about 2653.3752090498. The cubic root of 7040400 is about 191.6604240773.

Adding to 7040400 its reverse (40407), we get a palindrome (7080807).

It can be divided in two parts, 70 and 40400, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 7040400 in words is "seven million, forty thousand, four hundred".