61860642 has 8 divisors (see below), whose sum is σ = 123721296. Its totient is φ = 20620212.

The previous prime is 61860613. The next prime is 61860679. The reversal of 61860642 is 24606816.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

61860642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5155048 + ... + 5155059.

It is an arithmetic number, because the mean of its divisors is an integer number (15465162).

Almost surely, 2^61860642 is an apocalyptic number.

61860642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61860642 is a wasteful number, since it uses less digits than its factorization.

61860642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310112.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 61860642 is about 7865.1536539345. The cubic root of 61860642 is about 395.4923988027.

The spelling of 61860642 in words is "sixty-one million, eight hundred sixty thousand, six hundred forty-two".