61620032 has 28 divisors (see below), whose sum is σ = 125126496. Its totient is φ = 30092160.

The previous prime is 61620023. The next prime is 61620043. The reversal of 61620032 is 23002616.

61620032 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61619986 and 61620013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8444 + ... + 13947.

Almost surely, 2^61620032 is an apocalyptic number.

It is an amenable number.

61620032 is an abundant number, since it is smaller than the sum of its proper divisors (63506464).

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

61620032 is a wasteful number, since it uses less digits than its factorization.

61620032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22446 (or 22436 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 61620032 is about 7849.8428009738. The cubic root of 61620032 is about 394.9789701991.

Adding to 61620032 its reverse (23002616), we get a palindrome (84622648).

The spelling of 61620032 in words is "sixty-one million, six hundred twenty thousand, thirty-two".