2182400440 has 32 divisors (see below), whose sum is σ = 5356802160. Its totient is φ = 793600000.

The previous prime is 2182400431. The next prime is 2182400443. The reversal of 2182400440 is 440042812.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182400443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2479561 + ... + 2480440.

Almost surely, 2^2182400440 is an apocalyptic number.

2182400440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2182400440 is an abundant number, since it is smaller than the sum of its proper divisors (3174401720).

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

2182400440 is a wasteful number, since it uses less digits than its factorization.

2182400440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960023 (or 4960019 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 2182400440 is about 46716.1689353911. The cubic root of 2182400440 is about 1297.1140001888.

The spelling of 2182400440 in words is "two billion, one hundred eighty-two million, four hundred thousand, four hundred forty".