40656342 has 16 divisors (see below), whose sum is σ = 81461952. Its totient is φ = 13527240.

The previous prime is 40656313. The next prime is 40656389. The reversal of 40656342 is 24365604.

It is a congruent number.

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, 2508 + ... + 9359.

It is an arithmetic number, because the mean of its divisors is an integer number (5091372).

Almost surely, 2^40656342 is an apocalyptic number.

40656342 is an abundant number, since it is smaller than the sum of its proper divisors (40805610).

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

40656342 is a wasteful number, since it uses less digits than its factorization.

40656342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12443.

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 40656342 is about 6376.2325867239. The cubic root of 40656342 is about 343.8555989840.

The spelling of 40656342 in words is "forty million, six hundred fifty-six thousand, three hundred forty-two".