1427708656 has 20 divisors (see below), whose sum is σ = 3017657304. Its totient is φ = 648958400.

The previous prime is 1427708641. The next prime is 1427708699. The reversal of 1427708656 is 6568077241.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4055815 + ... + 4056166.

Almost surely, 2^1427708656 is an apocalyptic number.

1427708656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1427708656 is an abundant number, since it is smaller than the sum of its proper divisors (1589948648).

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

1427708656 is a wasteful number, since it uses less digits than its factorization.

1427708656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112000 (or 8111994 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 46.

The square root of 1427708656 is about 37785.0321688364. The cubic root of 1427708656 is about 1126.0211057693.

The spelling of 1427708656 in words is "one billion, four hundred twenty-seven million, seven hundred eight thousand, six hundred fifty-six".