1361889080 has 16 divisors (see below), whose sum is σ = 3064250520. Its totient is φ = 544755616.

The previous prime is 1361889073. The next prime is 1361889157. The reversal of 1361889080 is 809881631.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17023574 + ... + 17023653.

Almost surely, 2^1361889080 is an apocalyptic number.

1361889080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361889080 is an abundant number, since it is smaller than the sum of its proper divisors (1702361440).

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

1361889080 is a wasteful number, since it uses less digits than its factorization.

1361889080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34047238 (or 34047234 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 1361889080 is about 36903.7813780648. The cubic root of 1361889080 is about 1108.4443972344. Note that the first 3 decimals are identical.

The spelling of 1361889080 in words is "one billion, three hundred sixty-one million, eight hundred eighty-nine thousand, eighty".