40236920 has 32 divisors (see below), whose sum is σ = 93657600. Its totient is φ = 15539328.

The previous prime is 40236899. The next prime is 40236929. The reversal of 40236920 is 2963204.

It is a self number, because there is not a number n which added to its sum of digits gives 40236920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40236929) 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, 16184 + ... + 18503.

It is an arithmetic number, because the mean of its divisors is an integer number (2926800).

Almost surely, 2^40236920 is an apocalyptic number.

40236920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40236920 is an abundant number, since it is smaller than the sum of its proper divisors (53420680).

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

40236920 is a wasteful number, since it uses less digits than its factorization.

40236920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34727 (or 34723 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 40236920 is about 6343.2578380514. The cubic root of 40236920 is about 342.6690731123.

The spelling of 40236920 in words is "forty million, two hundred thirty-six thousand, nine hundred twenty".