40157834 has 16 divisors (see below), whose sum is σ = 63507456. Its totient is φ = 19016400.

The previous prime is 40157759. The next prime is 40157861. The reversal of 40157834 is 43875104.

It is a super-2 number, since 2×40157834² = 3225303263143112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40157834.

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, 3977 + ... + 9804.

It is an arithmetic number, because the mean of its divisors is an integer number (3969216).

Almost surely, 2^40157834 is an apocalyptic number.

40157834 is a deficient number, since it is larger than the sum of its proper divisors (23349622).

40157834 is a wasteful number, since it uses less digits than its factorization.

40157834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13861.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 40157834 is about 6337.0209089130. The cubic root of 40157834 is about 342.4444195600. Note that the first 4 decimals are identical.

The spelling of 40157834 in words is "forty million, one hundred fifty-seven thousand, eight hundred thirty-four".