40389532 has 6 divisors (see below), whose sum is σ = 70681688. Its totient is φ = 20194764.

The previous prime is 40389529. The next prime is 40389563. The reversal of 40389532 is 23598304.

It is a happy number.

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, 5048688 + ... + 5048695.

Almost surely, 2^40389532 is an apocalyptic number.

It is an amenable number.

40389532 is a deficient number, since it is larger than the sum of its proper divisors (30292156).

40389532 is a wasteful number, since it uses less digits than its factorization.

40389532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097387 (or 10097385 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 40389532 is about 6355.2759184791. The cubic root of 40389532 is about 343.1017556304.

The spelling of 40389532 in words is "forty million, three hundred eighty-nine thousand, five hundred thirty-two".