1422724188 has 12 divisors (see below), whose sum is σ = 3319689800. Its totient is φ = 474241392.

The previous prime is 1422724159. The next prime is 1422724189. The reversal of 1422724188 is 8814272241.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422724189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59280163 + ... + 59280186.

Almost surely, 2^1422724188 is an apocalyptic number.

It is an amenable number.

1422724188 is an abundant number, since it is smaller than the sum of its proper divisors (1896965612).

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

1422724188 is a wasteful number, since it uses less digits than its factorization.

1422724188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118560356 (or 118560354 counting only the distinct ones).

The product of its digits is 57344, while the sum is 39.

The square root of 1422724188 is about 37719.0162650088. The cubic root of 1422724188 is about 1124.7091759860.

The spelling of 1422724188 in words is "one billion, four hundred twenty-two million, seven hundred twenty-four thousand, one hundred eighty-eight".