61032020 has 48 divisors (see below), whose sum is σ = 147184128. Its totient is φ = 20824320.

The previous prime is 61031969. The next prime is 61032031. The reversal of 61032020 is 2023016.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 61031986 and 61032004.

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, 31685 + ... + 33555.

It is an arithmetic number, because the mean of its divisors is an integer number (3066336).

Almost surely, 2^61032020 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 61032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73592064).

61032020 is an abundant number, since it is smaller than the sum of its proper divisors (86152108).

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

61032020 is a wasteful number, since it uses less digits than its factorization.

61032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2120 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 61032020 is about 7812.2992774215. The cubic root of 61032020 is about 393.7185842072.

Adding to 61032020 its reverse (2023016), we get a palindrome (63055036).

The spelling of 61032020 in words is "sixty-one million, thirty-two thousand, twenty".