1420426656 has 72 divisors (see below), whose sum is σ = 4406560704. Its totient is φ = 430431360.

The previous prime is 1420426613. The next prime is 1420426703. The reversal of 1420426656 is 6566240241.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×1420426656² = 4035223770150684672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1420426656.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221016 + ... + 227351.

It is an arithmetic number, because the mean of its divisors is an integer number (61202232).

Almost surely, 2^1420426656 is an apocalyptic number.

1420426656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1420426656 is an abundant number, since it is smaller than the sum of its proper divisors (2986134048).

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

1420426656 is a wasteful number, since it uses less digits than its factorization.

1420426656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448394 (or 448383 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 1420426656 is about 37688.5480749790. The cubic root of 1420426656 is about 1124.1034255121.

Adding to 1420426656 its reverse (6566240241), we get a palindrome (7986666897).

The spelling of 1420426656 in words is "one billion, four hundred twenty million, four hundred twenty-six thousand, six hundred fifty-six".