40046157 has 16 divisors (see below), whose sum is σ = 60063360. Its totient is φ = 26695980.

The previous prime is 40046131. The next prime is 40046161. The reversal of 40046157 is 75164004.

40046157 is a `hidden beast` number, since 40 + 0 + 4 + 615 + 7 = 666.

It is not a de Polignac number, because 40046157 - 2⁶ = 40046093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40046157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40046107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6969 + ... + 11342.

It is an arithmetic number, because the mean of its divisors is an integer number (3753960).

Almost surely, 2^40046157 is an apocalyptic number.

It is an amenable number.

40046157 is a deficient number, since it is larger than the sum of its proper divisors (20017203).

40046157 is an frugal number, since it uses more digits than its factorization.

40046157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18332 (or 18314 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 40046157 is about 6328.2032995156. The cubic root of 40046157 is about 342.1266843695.

The spelling of 40046157 in words is "forty million, forty-six thousand, one hundred fifty-seven".