40749912 has 64 divisors (see below), whose sum is σ = 129369600. Its totient is φ = 11642400.

The previous prime is 40749899. The next prime is 40749923. The reversal of 40749912 is 21994704.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11964 + ... + 14987.

It is an arithmetic number, because the mean of its divisors is an integer number (2021400).

Almost surely, 2^40749912 is an apocalyptic number.

40749912 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

40749912 is an abundant number, since it is smaller than the sum of its proper divisors (88619688).

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

40749912 is a wasteful number, since it uses less digits than its factorization.

40749912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26973 (or 26963 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40749912 is about 6383.5657747062. The cubic root of 40749912 is about 344.1191898140.

The spelling of 40749912 in words is "forty million, seven hundred forty-nine thousand, nine hundred twelve".