542226906 has 32 divisors (see below), whose sum is σ = 1297638720. Its totient is φ = 166838832.

The previous prime is 542226901. The next prime is 542226961. The reversal of 542226906 is 609622245.

542226906 is a `hidden beast` number, since 542 + 2 + 26 + 90 + 6 = 666.

It is not an unprimeable number, because it can be changed into a prime (542226901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385500 + ... + 386903.

It is an arithmetic number, because the mean of its divisors is an integer number (40551210).

Almost surely, 2^542226906 is an apocalyptic number.

542226906 is an abundant number, since it is smaller than the sum of its proper divisors (755411814).

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

542226906 is a wasteful number, since it uses less digits than its factorization.

542226906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772427 (or 772421 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 542226906 is about 23285.7661673392. The cubic root of 542226906 is about 815.4431484124.

The spelling of 542226906 in words is "five hundred forty-two million, two hundred twenty-six thousand, nine hundred six".