1379484880 has 20 divisors (see below), whose sum is σ = 3207302532. Its totient is φ = 551793920.

The previous prime is 1379484877. The next prime is 1379484917. The reversal of 1379484880 is 884849731.

It can be written as a sum of positive squares in 2 ways, for example, as 612859536 + 766625344 = 24756^2 + 27688^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×1379484880² = 3805957068297228800, which contains 22 as substring.

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, 8621701 + ... + 8621860.

Almost surely, 2^1379484880 is an apocalyptic number.

1379484880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1379484880 is an abundant number, since it is smaller than the sum of its proper divisors (1827817652).

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

1379484880 is a wasteful number, since it uses less digits than its factorization.

1379484880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17243574 (or 17243568 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 52.

The square root of 1379484880 is about 37141.4173127521. The cubic root of 1379484880 is about 1113.1977372798.

The spelling of 1379484880 in words is "one billion, three hundred seventy-nine million, four hundred eighty-four thousand, eight hundred eighty".