3144245640 has 32 divisors (see below), whose sum is σ = 9432737280. Its totient is φ = 838465472.

The previous prime is 3144245639. The next prime is 3144245653. The reversal of 3144245640 is 465424413.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13100904 + ... + 13101143.

It is an arithmetic number, because the mean of its divisors is an integer number (294773040).

Almost surely, 2^3144245640 is an apocalyptic number.

3144245640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3144245640 is an abundant number, since it is smaller than the sum of its proper divisors (6288491640).

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

3144245640 is a wasteful number, since it uses less digits than its factorization.

3144245640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26202061 (or 26202057 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The square root of 3144245640 is about 56073.5734548816. The cubic root of 3144245640 is about 1465.0040404164.

The spelling of 3144245640 in words is "three billion, one hundred forty-four million, two hundred forty-five thousand, six hundred forty".