1980415428 has 24 divisors (see below), whose sum is σ = 4623571680. Its totient is φ = 659766720.

The previous prime is 1980415399. The next prime is 1980415433. The reversal of 1980415428 is 8245140891.

1980415428 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1980415428.

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, 23833 + ... + 67296.

It is an arithmetic number, because the mean of its divisors is an integer number (192648820).

Almost surely, 2^1980415428 is an apocalyptic number.

It is an amenable number.

1980415428 is an abundant number, since it is smaller than the sum of its proper divisors (2643156252).

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

1980415428 is a wasteful number, since it uses less digits than its factorization.

1980415428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92947 (or 92945 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 1980415428 is about 44501.8587027553. The cubic root of 1980415428 is about 1255.7950503689.

The spelling of 1980415428 in words is "one billion, nine hundred eighty million, four hundred fifteen thousand, four hundred twenty-eight".