40245810 has 48 divisors (see below), whose sum is σ = 106178688. Its totient is φ = 9755680.

The previous prime is 40245769. The next prime is 40245827. The reversal of 40245810 is 1854204.

It is a super-2 number, since 2×40245810² = 3239450445112200, 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 23 ways as a sum of consecutive naturals, for example, 1914 + ... + 9173.

It is an arithmetic number, because the mean of its divisors is an integer number (2212056).

Almost surely, 2^40245810 is an apocalyptic number.

40245810 is an abundant number, since it is smaller than the sum of its proper divisors (65932878).

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

40245810 is a wasteful number, since it uses less digits than its factorization.

40245810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11119 (or 11108 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 40245810 is about 6343.9585433702. The cubic root of 40245810 is about 342.6943078448.

The spelling of 40245810 in words is "forty million, two hundred forty-five thousand, eight hundred ten".