5642394100 has 108 divisors (see below), whose sum is σ = 14356747776. Its totient is φ = 1919090880.

The previous prime is 5642394073. The next prime is 5642394101. The reversal of 5642394100 is 14932465.

It is a happy number.

It is a super-2 number, since 2×5642394100² = 63673222359429620000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5642394101) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 617767 + ... + 626833.

Almost surely, 2^5642394100 is an apocalyptic number.

5642394100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5642394100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7178373888).

5642394100 is an abundant number, since it is smaller than the sum of its proper divisors (8714353676).

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

5642394100 is a wasteful number, since it uses less digits than its factorization.

5642394100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9222 (or 9208 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 5642394100 is about 75115.8711591632. The cubic root of 5642394100 is about 1780.2779202456.

The spelling of 5642394100 in words is "five billion, six hundred forty-two million, three hundred ninety-four thousand, one hundred".