40325164 has 24 divisors (see below), whose sum is σ = 80333568. Its totient is φ = 17532240.

The previous prime is 40325149. The next prime is 40325179. The reversal of 40325164 is 46152304.

It is an interprime number because it is at equal distance from previous prime (40325149) and next prime (40325179).

It is a super-2 number, since 2×40325164² = 3252237703253792, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 18912 + ... + 20935.

It is an arithmetic number, because the mean of its divisors is an integer number (3347232).

Almost surely, 2^40325164 is an apocalyptic number.

40325164 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40325164 is a deficient number, since it is larger than the sum of its proper divisors (40008404).

40325164 is a wasteful number, since it uses less digits than its factorization.

40325164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39885 (or 39883 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 40325164 is about 6350.2097603150. The cubic root of 40325164 is about 342.9193938885.

Adding to 40325164 its reverse (46152304), we get a palindrome (86477468).

The spelling of 40325164 in words is "forty million, three hundred twenty-five thousand, one hundred sixty-four".