40037138 has 16 divisors (see below), whose sum is σ = 61979904. Its totient is φ = 19386240.

The previous prime is 40037119. The next prime is 40037141. The reversal of 40037138 is 83173004.

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, 6923 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (3873744).

Almost surely, 2^40037138 is an apocalyptic number.

40037138 is a deficient number, since it is larger than the sum of its proper divisors (21942766).

40037138 is a wasteful number, since it uses less digits than its factorization.

40037138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 40037138 is about 6327.4906558603. The cubic root of 40037138 is about 342.1009984071.

The spelling of 40037138 in words is "forty million, thirty-seven thousand, one hundred thirty-eight".