40163072 has 18 divisors (see below), whose sum is σ = 80169768. Its totient is φ = 20081408.

The previous prime is 40163069. The next prime is 40163087. The reversal of 40163072 is 27036104.

It is a super-2 number, since 2×40163072² = 3226144704954368, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78188 + ... + 78699.

It is an arithmetic number, because the mean of its divisors is an integer number (4453876).

Almost surely, 2^40163072 is an apocalyptic number.

It is an amenable number.

40163072 is a deficient number, since it is larger than the sum of its proper divisors (40006696).

40163072 is an equidigital number, since it uses as much as digits as its factorization.

40163072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156903 (or 156889 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 40163072 is about 6337.4341811178. The cubic root of 40163072 is about 342.4593078621.

Adding to 40163072 its reverse (27036104), we get a palindrome (67199176).

The spelling of 40163072 in words is "forty million, one hundred sixty-three thousand, seventy-two".