40889152 has 14 divisors (see below), whose sum is σ = 81139538. Its totient is φ = 20444544.

The previous prime is 40889141. The next prime is 40889179. The reversal of 40889152 is 25198804.

It can be written as a sum of positive squares in only one way, i.e., 34857216 + 6031936 = 5904^2 + 2456^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 319383 + ... + 319510.

Almost surely, 2^40889152 is an apocalyptic number.

It is an amenable number.

40889152 is a deficient number, since it is larger than the sum of its proper divisors (40250386).

40889152 is an equidigital number, since it uses as much as digits as its factorization.

40889152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638905 (or 638895 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 40889152 is about 6394.4626044727. The cubic root of 40889152 is about 344.5106891049.

It can be divided in two parts, 40889 and 152, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 40889152 in words is "forty million, eight hundred eighty-nine thousand, one hundred fifty-two".