40889490 has 32 divisors (see below), whose sum is σ = 99484416. Its totient is φ = 10753920.

The previous prime is 40889473. The next prime is 40889521. The reversal of 40889490 is 9498804.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7146 + ... + 11525.

It is an arithmetic number, because the mean of its divisors is an integer number (3108888).

Almost surely, 2^40889490 is an apocalyptic number.

40889490 is an abundant number, since it is smaller than the sum of its proper divisors (58594926).

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

40889490 is a wasteful number, since it uses less digits than its factorization.

40889490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18754.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 40889490 is about 6394.4890335350. The cubic root of 40889490 is about 344.5116383729.

It can be divided in two parts, 408 and 89490, that added together give a palindrome (89898).

The spelling of 40889490 in words is "forty million, eight hundred eighty-nine thousand, four hundred ninety".