2420660400 has 60 divisors (see below), whose sum is σ = 7754185992. Its totient is φ = 645509120.

The previous prime is 2420660387. The next prime is 2420660419. The reversal of 2420660400 is 40660242.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1007409 + ... + 1009808.

Almost surely, 2^2420660400 is an apocalyptic number.

2420660400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2420660400 is an abundant number, since it is smaller than the sum of its proper divisors (5333525592).

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

2420660400 is a wasteful number, since it uses less digits than its factorization.

2420660400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2017238 (or 2017227 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2420660400 is about 49200.2073166364. The cubic root of 2420660400 is about 1342.6968040254.

The spelling of 2420660400 in words is "two billion, four hundred twenty million, six hundred sixty thousand, four hundred".