40898931 has 16 divisors (see below), whose sum is σ = 55620864. Its totient is φ = 26727264.

The previous prime is 40898929. The next prime is 40898959. The reversal of 40898931 is 13989804.

It is not a de Polignac number, because 40898931 - 2¹ = 40898929 is a prime.

It is a super-2 number, since 2×40898931² = 3345445113885522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40898981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32445 + ... + 33681.

It is an arithmetic number, because the mean of its divisors is an integer number (3476304).

Almost surely, 2^40898931 is an apocalyptic number.

40898931 is a deficient number, since it is larger than the sum of its proper divisors (14721933).

40898931 is a wasteful number, since it uses less digits than its factorization.

40898931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 40898931 is about 6395.2272047207. The cubic root of 40898931 is about 344.5381511686.

The spelling of 40898931 in words is "forty million, eight hundred ninety-eight thousand, nine hundred thirty-one".