1427247636 has 24 divisors (see below), whose sum is σ = 3330907104. Its totient is φ = 475654560.

The previous prime is 1427247629. The next prime is 1427247667. The reversal of 1427247636 is 6367427241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78706 + ... + 95126.

It is an arithmetic number, because the mean of its divisors is an integer number (138787796).

Almost surely, 2^1427247636 is an apocalyptic number.

It is an amenable number.

1427247636 is an abundant number, since it is smaller than the sum of its proper divisors (1903659468).

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

1427247636 is a wasteful number, since it uses less digits than its factorization.

1427247636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23671 (or 23669 counting only the distinct ones).

The product of its digits is 338688, while the sum is 42.

The square root of 1427247636 is about 37778.9311124600. The cubic root of 1427247636 is about 1125.8998919316.

The spelling of 1427247636 in words is "one billion, four hundred twenty-seven million, two hundred forty-seven thousand, six hundred thirty-six".