56842842 has 96 divisors (see below), whose sum is σ = 140356800. Its totient is φ = 15278592.

The previous prime is 56842831. The next prime is 56842853. The reversal of 56842842 is 24824865.

It is an interprime number because it is at equal distance from previous prime (56842831) and next prime (56842853).

It is a super-2 number, since 2×56842842² = 6462217373273928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56842842.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502978 + ... + 503090.

It is an arithmetic number, because the mean of its divisors is an integer number (1462050).

Almost surely, 2^56842842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56842842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70178400).

56842842 is an abundant number, since it is smaller than the sum of its proper divisors (83513958).

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

56842842 is a wasteful number, since it uses less digits than its factorization.

56842842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220 (or 213 counting only the distinct ones).

The product of its digits is 122880, while the sum is 39.

The square root of 56842842 is about 7539.4192084006. The cubic root of 56842842 is about 384.4960900530.

The spelling of 56842842 in words is "fifty-six million, eight hundred forty-two thousand, eight hundred forty-two".