40479885 has 32 divisors (see below), whose sum is σ = 75098880. Its totient is φ = 20649024.

The previous prime is 40479851. The next prime is 40479913. The reversal of 40479885 is 58897404.

40479885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40479885 - 2¹³ = 40471693 is a prime.

It is a super-2 number, since 2×40479885² = 3277242179226450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 40479885.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3414 + ... + 9623.

It is an arithmetic number, because the mean of its divisors is an integer number (2346840).

Almost surely, 2^40479885 is an apocalyptic number.

40479885 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40479885 is a deficient number, since it is larger than the sum of its proper divisors (34618995).

40479885 is a wasteful number, since it uses less digits than its factorization.

40479885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13074 (or 13068 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 40479885 is about 6362.3804507433. The cubic root of 40479885 is about 343.3574092102.

The spelling of 40479885 in words is "forty million, four hundred seventy-nine thousand, eight hundred eighty-five".