7440396 has 12 divisors (see below), whose sum is σ = 17360952. Its totient is φ = 2480128.

The previous prime is 7440383. The next prime is 7440397. The reversal of 7440396 is 6930447.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (7440397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310005 + ... + 310028.

It is an arithmetic number, because the mean of its divisors is an integer number (1446746).

Almost surely, 2^7440396 is an apocalyptic number.

It is an amenable number.

7440396 is an abundant number, since it is smaller than the sum of its proper divisors (9920556).

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

7440396 is a wasteful number, since it uses less digits than its factorization.

7440396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620040 (or 620038 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 33.

The square root of 7440396 is about 2727.7089287532. The cubic root of 7440396 is about 195.2234650529.

It can be divided in two parts, 74 and 40396, that added together give a triangular number (40470 = T₂₈₄).

The spelling of 7440396 in words is "seven million, four hundred forty thousand, three hundred ninety-six".