1421011880 has 32 divisors (see below), whose sum is σ = 3199616640. Its totient is φ = 567988800.

The previous prime is 1421011877. The next prime is 1421011901. The reversal of 1421011880 is 881101241.

It is a super-2 number, since 2×1421011880² = 4038549526202268800, which contains 22 as substring.

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, 45605 + ... + 70155.

It is an arithmetic number, because the mean of its divisors is an integer number (99988020).

Almost surely, 2^1421011880 is an apocalyptic number.

1421011880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421011880 is an abundant number, since it is smaller than the sum of its proper divisors (1778604760).

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

1421011880 is a wasteful number, since it uses less digits than its factorization.

1421011880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26009 (or 26005 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 26.

The square root of 1421011880 is about 37696.3112253706. The cubic root of 1421011880 is about 1124.2577833535.

The spelling of 1421011880 in words is "one billion, four hundred twenty-one million, eleven thousand, eight hundred eighty".