40989383 has 4 divisors (see below), whose sum is σ = 42402840. Its totient is φ = 39575928.

The previous prime is 40989371. The next prime is 40989401. The reversal of 40989383 is 38398904.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40989383 - 2⁴ = 40989367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40989313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 706685 + ... + 706742.

It is an arithmetic number, because the mean of its divisors is an integer number (10600710).

Almost surely, 2^40989383 is an apocalyptic number.

40989383 is a deficient number, since it is larger than the sum of its proper divisors (1413457).

40989383 is a wasteful number, since it uses less digits than its factorization.

40989383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413456.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 40989383 is about 6402.2951353401. The cubic root of 40989383 is about 344.7919574668.

The spelling of 40989383 in words is "forty million, nine hundred eighty-nine thousand, three hundred eighty-three".