2445556140 has 36 divisors (see below), whose sum is σ = 7418187504. Its totient is φ = 652148256.

The previous prime is 2445556129. The next prime is 2445556171. The reversal of 2445556140 is 416555442.

2445556140 is a `hidden beast` number, since 2 + 4 + 4 + 55 + 561 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2445556095 and 2445556104.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6793032 + ... + 6793391.

It is an arithmetic number, because the mean of its divisors is an integer number (206060764).

Almost surely, 2^2445556140 is an apocalyptic number.

2445556140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2445556140 is an abundant number, since it is smaller than the sum of its proper divisors (4972631364).

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

2445556140 is a wasteful number, since it uses less digits than its factorization.

2445556140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13586438 (or 13586433 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 2445556140 is about 49452.5645442175. The cubic root of 2445556140 is about 1347.2841863142.

The spelling of 2445556140 in words is "two billion, four hundred forty-five million, five hundred fifty-six thousand, one hundred forty".