40102156 has 12 divisors (see below), whose sum is σ = 73230192. Its totient is φ = 19179248.

The previous prime is 40102147. The next prime is 40102171. The reversal of 40102156 is 65120104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217855 + ... + 218038.

It is an arithmetic number, because the mean of its divisors is an integer number (6102516).

Almost surely, 2^40102156 is an apocalyptic number.

40102156 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

40102156 is a deficient number, since it is larger than the sum of its proper divisors (33128036).

40102156 is a wasteful number, since it uses less digits than its factorization.

40102156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435920 (or 435918 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 40102156 is about 6332.6263114130. The cubic root of 40102156 is about 342.2860823432.

The spelling of 40102156 in words is "forty million, one hundred two thousand, one hundred fifty-six".