5640742020 has 96 divisors (see below), whose sum is σ = 16357340160. Its totient is φ = 1450874880.

The previous prime is 5640742007. The next prime is 5640742033. The reversal of 5640742020 is 202470465.

It is an interprime number because it is at equal distance from previous prime (5640742007) and next prime (5640742033).

It is a Harshad number since it is a multiple of its sum of digits (30).

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 31 ways as a sum of consecutive naturals, for example, 577336 + ... + 587024.

It is an arithmetic number, because the mean of its divisors is an integer number (170388960).

Almost surely, 2^5640742020 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5640742020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8178670080).

5640742020 is an abundant number, since it is smaller than the sum of its proper divisors (10716598140).

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

5640742020 is a wasteful number, since it uses less digits than its factorization.

5640742020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10045 (or 10043 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 5640742020 is about 75104.8734770254. The cubic root of 5640742020 is about 1780.1041495261.

The spelling of 5640742020 in words is "five billion, six hundred forty million, seven hundred forty-two thousand, twenty".