61860744 has 96 divisors (see below), whose sum is σ = 187799040. Its totient is φ = 18230400.

The previous prime is 61860737. The next prime is 61860763. The reversal of 61860744 is 44706816.

61860744 is a `hidden beast` number, since 6 + 1 + 8 + 607 + 44 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 61860699 and 61860708.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28249 + ... + 30359.

It is an arithmetic number, because the mean of its divisors is an integer number (1956240).

Almost surely, 2^61860744 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 61860744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93899520).

61860744 is an abundant number, since it is smaller than the sum of its proper divisors (125938296).

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

61860744 is a wasteful number, since it uses less digits than its factorization.

61860744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2164 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 61860744 is about 7865.1601382299. The cubic root of 61860744 is about 395.4926161741.

The spelling of 61860744 in words is "sixty-one million, eight hundred sixty thousand, seven hundred forty-four".