1421916900 has 72 divisors (see below), whose sum is σ = 4214459424. Its totient is φ = 369926400.

The previous prime is 1421916883. The next prime is 1421916949. The reversal of 1421916900 is 96191241.

It is a super-2 number, since 2×1421916900² = 4043695341011220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45502 + ... + 70101.

Almost surely, 2^1421916900 is an apocalyptic number.

1421916900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421916900 is an abundant number, since it is smaller than the sum of its proper divisors (2792542524).

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

1421916900 is a wasteful number, since it uses less digits than its factorization.

1421916900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115661 (or 115654 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 1421916900 is about 37708.3134069929. The cubic root of 1421916900 is about 1124.4964067047.

The spelling of 1421916900 in words is "one billion, four hundred twenty-one million, nine hundred sixteen thousand, nine hundred".