1422151236 has 72 divisors (see below), whose sum is σ = 4052754720. Its totient is φ = 430950960.

The previous prime is 1422151189. The next prime is 1422151261. The reversal of 1422151236 is 6321512241.

1422151236 is a `hidden beast` number, since 1 + 422 + 1 + 5 + 1 + 236 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41346 + ... + 67481.

It is an arithmetic number, because the mean of its divisors is an integer number (56288260).

Almost surely, 2^1422151236 is an apocalyptic number.

It is an amenable number.

1422151236 is an abundant number, since it is smaller than the sum of its proper divisors (2630603484).

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

1422151236 is a wasteful number, since it uses less digits than its factorization.

1422151236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108862 (or 108843 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 1422151236 is about 37711.4204983053. The cubic root of 1422151236 is about 1124.5581767269.

Adding to 1422151236 its reverse (6321512241), we get a palindrome (7743663477).

The spelling of 1422151236 in words is "one billion, four hundred twenty-two million, one hundred fifty-one thousand, two hundred thirty-six".