7440004 has 24 divisors (see below), whose sum is σ = 15297408. Its totient is φ = 3121440.

The previous prime is 7439977. The next prime is 7440011. The reversal of 7440004 is 4000447.

It is a happy number.

It is a hoax number, since the sum of its digits (19) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5932 + ... + 7075.

It is an arithmetic number, because the mean of its divisors is an integer number (637392).

Almost surely, 2^7440004 is an apocalyptic number.

It is an amenable number.

7440004 is an abundant number, since it is smaller than the sum of its proper divisors (7857404).

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

7440004 is a wasteful number, since it uses less digits than its factorization.

7440004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13035 (or 13033 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 7440004 is about 2727.6370726326. The cubic root of 7440004 is about 195.2200365194.

The spelling of 7440004 in words is "seven million, four hundred forty thousand, four".