40031950 has 24 divisors (see below), whose sum is σ = 85097232. Its totient is φ = 13725120.

The previous prime is 40031941. The next prime is 40031969. The reversal of 40031950 is 5913004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56839 + ... + 57538.

It is an arithmetic number, because the mean of its divisors is an integer number (3545718).

Almost surely, 2^40031950 is an apocalyptic number.

40031950 is an abundant number, since it is smaller than the sum of its proper divisors (45065282).

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

40031950 is a wasteful number, since it uses less digits than its factorization.

40031950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114396 (or 114391 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 40031950 is about 6327.0806854346. The cubic root of 40031950 is about 342.0862213215.

Adding to 40031950 its reverse (5913004), we get a palindrome (45944954).

The spelling of 40031950 in words is "forty million, thirty-one thousand, nine hundred fifty".