1427644992 has 56 divisors (see below), whose sum is σ = 3782722432. Its totient is φ = 475200000.

The previous prime is 1427644991. The next prime is 1427645027. The reversal of 1427644992 is 2994467241.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (1427644991) 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, 139242 + ... + 149142.

Almost surely, 2^1427644992 is an apocalyptic number.

1427644992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1427644992 is an abundant number, since it is smaller than the sum of its proper divisors (2355077440).

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

1427644992 is an equidigital number, since it uses as much as digits as its factorization.

1427644992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10667 (or 10657 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 1427644992 is about 37784.1897094539. The cubic root of 1427644992 is about 1126.0043684439.

The spelling of 1427644992 in words is "one billion, four hundred twenty-seven million, six hundred forty-four thousand, nine hundred ninety-two".