1421640300 has 72 divisors (see below), whose sum is σ = 4355252496. Its totient is φ = 356802560.

The previous prime is 1421640293. The next prime is 1421640323. The reversal of 1421640300 is 30461241.

It is a super-2 number, since 2×1421640300² = 4042122285168180000, 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, 134277 + ... + 144476.

It is an arithmetic number, because the mean of its divisors is an integer number (60489618).

Almost surely, 2^1421640300 is an apocalyptic number.

1421640300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421640300 is an abundant number, since it is smaller than the sum of its proper divisors (2933612196).

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

1421640300 is a wasteful number, since it uses less digits than its factorization.

1421640300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278787 (or 278780 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1421640300 is about 37704.6456023658. The cubic root of 1421640300 is about 1124.4234873293.

The spelling of 1421640300 in words is "one billion, four hundred twenty-one million, six hundred forty thousand, three hundred".