1461988080 has 240 divisors, whose sum is σ = 5665780224. Its totient is φ = 330923520.

The previous prime is 1461988061. The next prime is 1461988097. The reversal of 1461988080 is 808891641.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 537925 + ... + 540635.

Almost surely, 2^1461988080 is an apocalyptic number.

1461988080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1461988080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2832890112).

1461988080 is an abundant number, since it is smaller than the sum of its proper divisors (4203792144).

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

1461988080 is a wasteful number, since it uses less digits than its factorization.

1461988080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2844 (or 2835 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 45.

The square root of 1461988080 is about 38235.9527146899. The cubic root of 1461988080 is about 1134.9618855540.

The spelling of 1461988080 in words is "one billion, four hundred sixty-one million, nine hundred eighty-eight thousand, eighty".