40188070 has 32 divisors (see below), whose sum is σ = 78730848. Its totient is φ = 14681088.

The previous prime is 40188053. The next prime is 40188091. The reversal of 40188070 is 7088104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11017 + ... + 14203.

It is an arithmetic number, because the mean of its divisors is an integer number (2460339).

Almost surely, 2^40188070 is an apocalyptic number.

40188070 is a deficient number, since it is larger than the sum of its proper divisors (38542778).

40188070 is a wasteful number, since it uses less digits than its factorization.

40188070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its (nonzero) digits is 1792, while the sum is 28.

The square root of 40188070 is about 6339.4061236050. The cubic root of 40188070 is about 342.5303434498.

The spelling of 40188070 in words is "forty million, one hundred eighty-eight thousand, seventy".