40256958 has 16 divisors (see below), whose sum is σ = 92016000. Its totient is φ = 11501976.

The previous prime is 40256917. The next prime is 40256963. The reversal of 40256958 is 85965204.

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, 479208 + ... + 479291.

It is an arithmetic number, because the mean of its divisors is an integer number (5751000).

Almost surely, 2^40256958 is an apocalyptic number.

40256958 is an abundant number, since it is smaller than the sum of its proper divisors (51759042).

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

40256958 is a wasteful number, since it uses less digits than its factorization.

40256958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958511.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 40256958 is about 6344.8371137485. The cubic root of 40256958 is about 342.7259467777.

It can be divided in two parts, 4025695 and 8, that added together give a triangular number (4025703 = T₂₈₃₇).

The spelling of 40256958 in words is "forty million, two hundred fifty-six thousand, nine hundred fifty-eight".