1421562380 has 48 divisors (see below), whose sum is σ = 3560094720. Its totient is φ = 466200768.

The previous prime is 1421562377. The next prime is 1421562391. The reversal of 1421562380 is 832651241.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217520 + ... + 223959.

It is an arithmetic number, because the mean of its divisors is an integer number (74168640).

Almost surely, 2^1421562380 is an apocalyptic number.

1421562380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421562380 is an abundant number, since it is smaller than the sum of its proper divisors (2138532340).

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

1421562380 is a wasteful number, since it uses less digits than its factorization.

1421562380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441518 (or 441516 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1421562380 is about 37703.6122937843. The cubic root of 1421562380 is about 1124.4029437645.

The spelling of 1421562380 in words is "one billion, four hundred twenty-one million, five hundred sixty-two thousand, three hundred eighty".