37640138 has 16 divisors (see below), whose sum is σ = 59526144. Its totient is φ = 17824080.

The previous prime is 37640117. The next prime is 37640143. The reversal of 37640138 is 83104673.

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, 3545 + ... + 9372.

It is an arithmetic number, because the mean of its divisors is an integer number (3720384).

Almost surely, 2^37640138 is an apocalyptic number.

37640138 is a deficient number, since it is larger than the sum of its proper divisors (21886006).

37640138 is a wasteful number, since it uses less digits than its factorization.

37640138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12997.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 37640138 is about 6135.1559067395. The cubic root of 37640138 is about 335.1329033817.

The spelling of 37640138 in words is "thirty-seven million, six hundred forty thousand, one hundred thirty-eight".