1421432900 has 36 divisors (see below), whose sum is σ = 3265955028. Its totient is φ = 535127040.

The previous prime is 1421432899. The next prime is 1421432953. The reversal of 1421432900 is 92341241.

It can be written as a sum of positive squares in 6 ways, for example, as 72046144 + 1349386756 = 8488^2 + 36734^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1421432900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 416369 + ... + 419768.

It is an arithmetic number, because the mean of its divisors is an integer number (90720973).

Almost surely, 2^1421432900 is an apocalyptic number.

1421432900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421432900 is an abundant number, since it is smaller than the sum of its proper divisors (1844522128).

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

1421432900 is a wasteful number, since it uses less digits than its factorization.

1421432900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836168 (or 836161 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1421432900 is about 37701.8951778289. The cubic root of 1421432900 is about 1124.3688047740.

The spelling of 1421432900 in words is "one billion, four hundred twenty-one million, four hundred thirty-two thousand, nine hundred".