5634642420 has 96 divisors (see below), whose sum is σ = 19123655040. Its totient is φ = 1365972480.

The previous prime is 5634642389. The next prime is 5634642437. The reversal of 5634642420 is 242464365.

5634642420 is a `hidden beast` number, since 5 + 6 + 3 + 4 + 642 + 4 + 2 + 0 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 468357 + ... + 480236.

It is an arithmetic number, because the mean of its divisors is an integer number (199204740).

Almost surely, 2^5634642420 is an apocalyptic number.

It is an amenable number.

5634642420 is an abundant number, since it is smaller than the sum of its proper divisors (13489012620).

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

5634642420 is a wasteful number, since it uses less digits than its factorization.

5634642420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 948622 (or 948614 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 5634642420 is about 75064.2552750642. The cubic root of 5634642420 is about 1779.4622812924.

The spelling of 5634642420 in words is "five billion, six hundred thirty-four million, six hundred forty-two thousand, four hundred twenty".