61483920 has 80 divisors (see below), whose sum is σ = 191571072. Its totient is φ = 16312320.

The previous prime is 61483907. The next prime is 61483927. The reversal of 61483920 is 2938416.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (61483927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57309 + ... + 58371.

Almost surely, 2^61483920 is an apocalyptic number.

61483920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61483920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95785536).

61483920 is an abundant number, since it is smaller than the sum of its proper divisors (130087152).

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

61483920 is a wasteful number, since it uses less digits than its factorization.

61483920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1314 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 61483920 is about 7841.1682803011. The cubic root of 61483920 is about 394.6879338329.

The spelling of 61483920 in words is "sixty-one million, four hundred eighty-three thousand, nine hundred twenty".