40392345 has 48 divisors (see below), whose sum is σ = 76180608. Its totient is φ = 17902080.

The previous prime is 40392343. The next prime is 40392353. The reversal of 40392345 is 54329304.

It is not a de Polignac number, because 40392345 - 2¹ = 40392343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40392343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143605 + ... + 143885.

It is an arithmetic number, because the mean of its divisors is an integer number (1587096).

Almost surely, 2^40392345 is an apocalyptic number.

It is an amenable number.

40392345 is a deficient number, since it is larger than the sum of its proper divisors (35788263).

40392345 is a wasteful number, since it uses less digits than its factorization.

40392345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 333 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40392345 is about 6355.4972268108. The cubic root of 40392345 is about 343.1097207539.

The spelling of 40392345 in words is "forty million, three hundred ninety-two thousand, three hundred forty-five".