2420555400 has 120 divisors (see below), whose sum is σ = 8407003770. Its totient is φ = 645477120.

The previous prime is 2420555393. The next prime is 2420555437. The reversal of 2420555400 is 45550242.

2420555400 is a `hidden beast` number, since 2 + 4 + 205 + 55 + 400 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 2151660996 + 268894404 = 46386^2 + 16398^2 .

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 58509 + ... + 90908.

Almost surely, 2^2420555400 is an apocalyptic number.

2420555400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420555400 is an abundant number, since it is smaller than the sum of its proper divisors (5986448370).

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

2420555400 is a wasteful number, since it uses less digits than its factorization.

2420555400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149445 (or 149427 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 27.

The square root of 2420555400 is about 49199.1402363903. The cubic root of 2420555400 is about 1342.6773898739.

The spelling of 2420555400 in words is "two billion, four hundred twenty million, five hundred fifty-five thousand, four hundred".