40999632 has 20 divisors (see below), whose sum is σ = 105915840. Its totient is φ = 13666528.

The previous prime is 40999627. The next prime is 40999633. The reversal of 40999632 is 23699904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40999633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427032 + ... + 427127.

It is an arithmetic number, because the mean of its divisors is an integer number (5295792).

Almost surely, 2^40999632 is an apocalyptic number.

It is an amenable number.

40999632 is an abundant number, since it is smaller than the sum of its proper divisors (64916208).

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

40999632 is a wasteful number, since it uses less digits than its factorization.

40999632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854170 (or 854164 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 42.

The square root of 40999632 is about 6403.0955013962. The cubic root of 40999632 is about 344.8206923734.

It can be divided in two parts, 4099 and 9632, that added together give a palindrome (13731).

The spelling of 40999632 in words is "forty million, nine hundred ninety-nine thousand, six hundred thirty-two".