5642562420 has 72 divisors (see below), whose sum is σ = 18671758560. Its totient is φ = 1367893440.

The previous prime is 5642562397. The next prime is 5642562421. The reversal of 5642562420 is 242652465.

5642562420 is a `hidden beast` number, since 5 + 6 + 4 + 2 + 5 + 624 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642562421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1422910 + ... + 1426869.

It is an arithmetic number, because the mean of its divisors is an integer number (259329980).

Almost surely, 2^5642562420 is an apocalyptic number.

It is an amenable number.

5642562420 is an abundant number, since it is smaller than the sum of its proper divisors (13029196140).

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

5642562420 is a wasteful number, since it uses less digits than its factorization.

5642562420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849805 (or 2849800 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 5642562420 is about 75116.9915531766. The cubic root of 5642562420 is about 1780.2956227430.

The spelling of 5642562420 in words is "five billion, six hundred forty-two million, five hundred sixty-two thousand, four hundred twenty".