1421408892 has 24 divisors (see below), whose sum is σ = 3342739456. Its totient is φ = 470071728.

The previous prime is 1421408881. The next prime is 1421408917. The reversal of 1421408892 is 2988041241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421408892.

It is a congruent number.

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, 464818 + ... + 467865.

Almost surely, 2^1421408892 is an apocalyptic number.

1421408892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421408892 is an abundant number, since it is smaller than the sum of its proper divisors (1921330564).

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

1421408892 is a wasteful number, since it uses less digits than its factorization.

1421408892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 932817 (or 932815 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 1421408892 is about 37701.5767840020. The cubic root of 1421408892 is about 1124.3624745425.

The spelling of 1421408892 in words is "one billion, four hundred twenty-one million, four hundred eight thousand, eight hundred ninety-two".