1423997456 has 20 divisors (see below), whose sum is σ = 3153137472. Its totient is φ = 610284576.

The previous prime is 1423997453. The next prime is 1423997461. The reversal of 1423997456 is 6547993241.

It is not an unprimeable number, because it can be changed into a prime (1423997453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6357020 + ... + 6357243.

Almost surely, 2^1423997456 is an apocalyptic number.

1423997456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1423997456 is an abundant number, since it is smaller than the sum of its proper divisors (1729140016).

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

1423997456 is a wasteful number, since it uses less digits than its factorization.

1423997456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12714278 (or 12714272 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 1423997456 is about 37735.8908202788. The cubic root of 1423997456 is about 1125.0445956972.

The spelling of 1423997456 in words is "one billion, four hundred twenty-three million, nine hundred ninety-seven thousand, four hundred fifty-six".