1421928132 has 12 divisors (see below), whose sum is σ = 3317832336. Its totient is φ = 473976040.

The previous prime is 1421928113. The next prime is 1421928133. The reversal of 1421928132 is 2318291241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1421928132² = 4043759225146018848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1421928093 and 1421928102.

It is not an unprimeable number, because it can be changed into a prime (1421928133) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59246994 + ... + 59247017.

It is an arithmetic number, because the mean of its divisors is an integer number (276486028).

Almost surely, 2^1421928132 is an apocalyptic number.

1421928132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1421928132 is an abundant number, since it is smaller than the sum of its proper divisors (1895904204).

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

1421928132 is a wasteful number, since it uses less digits than its factorization.

1421928132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118494018 (or 118494016 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1421928132 is about 37708.4623393742. The cubic root of 1421928132 is about 1124.4993675693.

The spelling of 1421928132 in words is "one billion, four hundred twenty-one million, nine hundred twenty-eight thousand, one hundred thirty-two".