7400872 has 8 divisors (see below), whose sum is σ = 13876650. Its totient is φ = 3700432.

The previous prime is 7400863. The next prime is 7400873. The reversal of 7400872 is 2780047.

It can be written as a sum of positive squares in only one way, i.e., 4691556 + 2709316 = 2166^2 + 1646^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7400872.

It is not an unprimeable number, because it can be changed into a prime (7400873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 462547 + ... + 462562.

Almost surely, 2^7400872 is an apocalyptic number.

It is an amenable number.

7400872 is a deficient number, since it is larger than the sum of its proper divisors (6475778).

7400872 is a wasteful number, since it uses less digits than its factorization.

7400872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 925115 (or 925111 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7400872 is about 2720.4543738133. The cubic root of 7400872 is about 194.8771700710.

The spelling of 7400872 in words is "seven million, four hundred thousand, eight hundred seventy-two".