40950138 has 16 divisors (see below), whose sum is σ = 82375776. Its totient is φ = 13570800.

The previous prime is 40950137. The next prime is 40950167. The reversal of 40950138 is 83105904.

It is not an unprimeable number, because it can be changed into a prime (40950131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18688 + ... + 20763.

It is an arithmetic number, because the mean of its divisors is an integer number (5148486).

Almost surely, 2^40950138 is an apocalyptic number.

40950138 is an abundant number, since it is smaller than the sum of its proper divisors (41425638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40950138 is a wasteful number, since it uses less digits than its factorization.

40950138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39629.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 40950138 is about 6399.2294848677. The cubic root of 40950138 is about 344.6818827744.

The spelling of 40950138 in words is "forty million, nine hundred fifty thousand, one hundred thirty-eight".