40089252 has 72 divisors (see below), whose sum is σ = 112613760. Its totient is φ = 11054400.

The previous prime is 40089251. The next prime is 40089263. The reversal of 40089252 is 25298004.

40089252 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40089251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15877 + ... + 18227.

It is an arithmetic number, because the mean of its divisors is an integer number (1564080).

Almost surely, 2^40089252 is an apocalyptic number.

40089252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40089252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56306880).

40089252 is an abundant number, since it is smaller than the sum of its proper divisors (72524508).

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

40089252 is a wasteful number, since it uses less digits than its factorization.

40089252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2401 (or 2392 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 40089252 is about 6331.6073788573. The cubic root of 40089252 is about 342.2493650036.

The spelling of 40089252 in words is "forty million, eighty-nine thousand, two hundred fifty-two".