226139442 has 16 divisors (see below), whose sum is σ = 456282720. Its totient is φ = 74712512.

The previous prime is 226139437. The next prime is 226139453. The reversal of 226139442 is 244931622.

It is a super-2 number, since 2×226139442² = 102278094456142728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166092 + ... + 167447.

It is an arithmetic number, because the mean of its divisors is an integer number (28517670).

Almost surely, 2^226139442 is an apocalyptic number.

226139442 is an abundant number, since it is smaller than the sum of its proper divisors (230143278).

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

226139442 is a wasteful number, since it uses less digits than its factorization.

226139442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333657.

The product of its digits is 20736, while the sum is 33.

The square root of 226139442 is about 15037.9334351499. The cubic root of 226139442 is about 609.2451848024.

The spelling of 226139442 in words is "two hundred twenty-six million, one hundred thirty-nine thousand, four hundred forty-two".