1420634655 has 48 divisors (see below), whose sum is σ = 2827693440. Its totient is φ = 652536000.

The previous prime is 1420634651. The next prime is 1420634671. The reversal of 1420634655 is 5564360241.

1420634655 is a `hidden beast` number, since 14 + 2 + 0 + 634 + 6 + 5 + 5 = 666.

It is not a de Polignac number, because 1420634655 - 2² = 1420634651 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420634651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66121 + ... + 84930.

It is an arithmetic number, because the mean of its divisors is an integer number (58910280).

Almost surely, 2^1420634655 is an apocalyptic number.

1420634655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1420634655 is a deficient number, since it is larger than the sum of its proper divisors (1407058785).

1420634655 is a wasteful number, since it uses less digits than its factorization.

1420634655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151092 (or 151089 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 1420634655 is about 37691.3074196160. The cubic root of 1420634655 is about 1124.1582918852.

Adding to 1420634655 its reverse (5564360241), we get a palindrome (6984994896).

The spelling of 1420634655 in words is "one billion, four hundred twenty million, six hundred thirty-four thousand, six hundred fifty-five".