61485732 has 144 divisors (see below), whose sum is σ = 198866304. Its totient is φ = 15552000.

The previous prime is 61485727. The next prime is 61485761. The reversal of 61485732 is 23758416.

61485732 is a `hidden beast` number, since 614 + 8 + 5 + 7 + 32 = 666.

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

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, 113382 + ... + 113922.

It is an arithmetic number, because the mean of its divisors is an integer number (1381016).

Almost surely, 2^61485732 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 61485732, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99433152).

61485732 is an abundant number, since it is smaller than the sum of its proper divisors (137380572).

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

61485732 is a wasteful number, since it uses less digits than its factorization.

61485732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 605 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 61485732 is about 7841.2838234565. The cubic root of 61485732 is about 394.6918110933.

The spelling of 61485732 in words is "sixty-one million, four hundred eighty-five thousand, seven hundred thirty-two".