40989384 has 96 divisors (see below), whose sum is σ = 118591200. Its totient is φ = 12788064.

The previous prime is 40989371. The next prime is 40989401. The reversal of 40989384 is 48398904.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 493807 + ... + 493889.

It is an arithmetic number, because the mean of its divisors is an integer number (1235325).

Almost surely, 2^40989384 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 40989384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59295600).

40989384 is an abundant number, since it is smaller than the sum of its proper divisors (77601816).

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

40989384 is a wasteful number, since it uses less digits than its factorization.

40989384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 40989384 is about 6402.2952134371. The cubic root of 40989384 is about 344.7919602707.

The spelling of 40989384 in words is "forty million, nine hundred eighty-nine thousand, three hundred eighty-four".