1420008656 has 40 divisors (see below), whose sum is σ = 3009090144. Its totient is φ = 643800960.

The previous prime is 1420008649. The next prime is 1420008671. The reversal of 1420008656 is 6568000241.

It is a super-2 number, since 2×1420008656² = 4032849166229852672, which contains 22 as substring.

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, 59711 + ... + 80033.

Almost surely, 2^1420008656 is an apocalyptic number.

1420008656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1420008656 is an abundant number, since it is smaller than the sum of its proper divisors (1589081488).

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

1420008656 is a wasteful number, since it uses less digits than its factorization.

1420008656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20739 (or 20733 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 1420008656 is about 37683.0022158532. The cubic root of 1420008656 is about 1123.9931484746.

Adding to 1420008656 its reverse (6568000241), we get a palindrome (7988008897).

The spelling of 1420008656 in words is "one billion, four hundred twenty million, eight thousand, six hundred fifty-six".