7940465 has 12 divisors (see below), whose sum is σ = 10319004. Its totient is φ = 5863104.

The previous prime is 7940447. The next prime is 7940467. The reversal of 7940465 is 5640497.

It can be written as a sum of positive squares in 6 ways, for example, as 4227136 + 3713329 = 2056^2 + 1927^2 .

It is not a de Polignac number, because 7940465 - 2⁸ = 7940209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7940467) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3854 + ... + 5543.

It is an arithmetic number, because the mean of its divisors is an integer number (859917).

Almost surely, 2^7940465 is an apocalyptic number.

It is an amenable number.

7940465 is a deficient number, since it is larger than the sum of its proper divisors (2378539).

7940465 is a wasteful number, since it uses less digits than its factorization.

7940465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9428 (or 9415 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 7940465 is about 2817.8830706756. The cubic root of 7940465 is about 199.5026391864.

Subtracting from 7940465 its reverse (5640497), we obtain a cube (2299968 = 132³).

The spelling of 7940465 in words is "seven million, nine hundred forty thousand, four hundred sixty-five".