40489472 has 40 divisors (see below), whose sum is σ = 83542272. Its totient is φ = 19584000.

The previous prime is 40489469. The next prime is 40489483. The reversal of 40489472 is 27498404.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14597 + ... + 17147.

Almost surely, 2^40489472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40489472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41771136).

40489472 is an abundant number, since it is smaller than the sum of its proper divisors (43052800).

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

40489472 is an equidigital number, since it uses as much as digits as its factorization.

40489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600 (or 2584 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 40489472 is about 6363.1338191177. The cubic root of 40489472 is about 343.3845132698.

The spelling of 40489472 in words is "forty million, four hundred eighty-nine thousand, four hundred seventy-two".