40138702 has 8 divisors (see below), whose sum is σ = 61344216. Its totient is φ = 19690632.

The previous prime is 40138699. The next prime is 40138711. The reversal of 40138702 is 20783104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40138702² = 3222230796489608, which contains 22 as substring.

It is a congruent number.

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, 189228 + ... + 189439.

It is an arithmetic number, because the mean of its divisors is an integer number (7668027).

Almost surely, 2^40138702 is an apocalyptic number.

40138702 is a deficient number, since it is larger than the sum of its proper divisors (21205514).

40138702 is a wasteful number, since it uses less digits than its factorization.

40138702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378722.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 40138702 is about 6335.5111869525. The cubic root of 40138702 is about 342.3900284512.

The spelling of 40138702 in words is "forty million, one hundred thirty-eight thousand, seven hundred two".