1421732460 has 24 divisors (see below), whose sum is σ = 3980851056. Its totient is φ = 379128640.

The previous prime is 1421732407. The next prime is 1421732461. The reversal of 1421732460 is 642371241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1421732461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11847711 + ... + 11847830.

It is an arithmetic number, because the mean of its divisors is an integer number (165868794).

Almost surely, 2^1421732460 is an apocalyptic number.

1421732460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421732460 is an abundant number, since it is smaller than the sum of its proper divisors (2559118596).

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

1421732460 is a wasteful number, since it uses less digits than its factorization.

1421732460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23695553 (or 23695551 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 1421732460 is about 37705.8677131292. The cubic root of 1421732460 is about 1124.4477842933.

The spelling of 1421732460 in words is "one billion, four hundred twenty-one million, seven hundred thirty-two thousand, four hundred sixty".