61620192 has 72 divisors (see below), whose sum is σ = 184471560. Its totient is φ = 19457280.

The previous prime is 61620191. The next prime is 61620193. The reversal of 61620192 is 29102616.

It is an interprime number because it is at equal distance from previous prime (61620191) and next prime (61620193).

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61620191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 159 + ... + 11102.

It is an arithmetic number, because the mean of its divisors is an integer number (2562105).

Almost surely, 2^61620192 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 61620192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92235780).

61620192 is an abundant number, since it is smaller than the sum of its proper divisors (122851368).

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

61620192 is a wasteful number, since it uses less digits than its factorization.

61620192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11296 (or 11285 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 61620192 is about 7849.8529922541. The cubic root of 61620192 is about 394.9793120608.

The spelling of 61620192 in words is "sixty-one million, six hundred twenty thousand, one hundred ninety-two".