369621980 has 96 divisors (see below), whose sum is σ = 977754624. Its totient is φ = 114234624.

The previous prime is 369621949. The next prime is 369622009. The reversal of 369621980 is 89126963.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 75899 + ... + 80621.

It is an arithmetic number, because the mean of its divisors is an integer number (10184944).

Almost surely, 2^369621980 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 369621980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (488877312).

369621980 is an abundant number, since it is smaller than the sum of its proper divisors (608132644).

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

369621980 is a wasteful number, since it uses less digits than its factorization.

369621980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4795 (or 4793 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 369621980 is about 19225.5553885967. Note that the first 3 decimals coincide. The cubic root of 369621980 is about 717.6608630566.

The spelling of 369621980 in words is "three hundred sixty-nine million, six hundred twenty-one thousand, nine hundred eighty".