61919032 has 64 divisors (see below), whose sum is σ = 141635520. Its totient is φ = 24772608.

The previous prime is 61919023. The next prime is 61919057. The reversal of 61919032 is 23091916.

It is a junction number, because it is equal to n+sod(n) for n = 61918985 and 61919003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183568 + ... + 183904.

It is an arithmetic number, because the mean of its divisors is an integer number (2213055).

Almost surely, 2^61919032 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 61919032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70817760).

61919032 is an abundant number, since it is smaller than the sum of its proper divisors (79716488).

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

61919032 is a wasteful number, since it uses less digits than its factorization.

61919032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560 (or 556 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 61919032 is about 7868.8647211653. The cubic root of 61919032 is about 395.6167942098.

The spelling of 61919032 in words is "sixty-one million, nine hundred nineteen thousand, thirty-two".