61842456 has 48 divisors (see below), whose sum is σ = 180376560. Its totient is φ = 19028160.

The previous prime is 61842449. The next prime is 61842463. The reversal of 61842456 is 65424816.

61842456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (61842449) and next prime (61842463).

It is a super-2 number, since 2×61842456² = 7648978728223872, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is a self number, because there is not a number n which added to its sum of digits gives 61842456.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 32100 + ... + 33971.

It is an arithmetic number, because the mean of its divisors is an integer number (3757845).

Almost surely, 2^61842456 is an apocalyptic number.

It is an amenable number.

61842456 is an abundant number, since it is smaller than the sum of its proper divisors (118534104).

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

61842456 is a wasteful number, since it uses less digits than its factorization.

61842456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66096 (or 66089 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 61842456 is about 7863.9974567646. The cubic root of 61842456 is about 395.4536389415.

The spelling of 61842456 in words is "sixty-one million, eight hundred forty-two thousand, four hundred fifty-six".