40989935 has 32 divisors (see below), whose sum is σ = 60341760. Its totient is φ = 26103168.

The previous prime is 40989931. The next prime is 40989943. The reversal of 40989935 is 53998904.

It is not a de Polignac number, because 40989935 - 2² = 40989931 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40989935.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40989931) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34664 + ... + 35826.

It is an arithmetic number, because the mean of its divisors is an integer number (1885680).

Almost surely, 2^40989935 is an apocalyptic number.

40989935 is a deficient number, since it is larger than the sum of its proper divisors (19351825).

40989935 is a wasteful number, since it uses less digits than its factorization.

40989935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1247.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 40989935 is about 6402.3382447353. The cubic root of 40989935 is about 344.7935052197.

The spelling of 40989935 in words is "forty million, nine hundred eighty-nine thousand, nine hundred thirty-five".