229215426 has 32 divisors (see below), whose sum is σ = 516243456. Its totient is φ = 67218000.

The previous prime is 229215421. The next prime is 229215431. The reversal of 229215426 is 624512922.

It is an interprime number because it is at equal distance from previous prime (229215421) and next prime (229215431).

It is a super-2 number, since 2×229215426² = 105079423032722952, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (229215421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53970 + ... + 58061.

It is an arithmetic number, because the mean of its divisors is an integer number (16132608).

Almost surely, 2^229215426 is an apocalyptic number.

229215426 is an abundant number, since it is smaller than the sum of its proper divisors (287028030).

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

229215426 is a wasteful number, since it uses less digits than its factorization.

229215426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112078.

The product of its digits is 17280, while the sum is 33.

The square root of 229215426 is about 15139.8621526089. The cubic root of 229215426 is about 611.9951033399.

The spelling of 229215426 in words is "two hundred twenty-nine million, two hundred fifteen thousand, four hundred twenty-six".