61202320 has 40 divisors (see below), whose sum is σ = 142758720. Its totient is φ = 24401280.

The previous prime is 61202279. The next prime is 61202341. The reversal of 61202320 is 2320216.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 61202294 and 61202303.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27655 + ... + 29785.

It is an arithmetic number, because the mean of its divisors is an integer number (3568968).

Almost surely, 2^61202320 is an apocalyptic number.

It is an amenable number.

61202320 is an abundant number, since it is smaller than the sum of its proper divisors (81556400).

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

61202320 is a wasteful number, since it uses less digits than its factorization.

61202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503 (or 2497 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 61202320 is about 7823.1911647358. The cubic root of 61202320 is about 394.0844468427.

Adding to 61202320 its reverse (2320216), we get a palindrome (63522536).

The spelling of 61202320 in words is "sixty-one million, two hundred two thousand, three hundred twenty".