234220146 has 16 divisors (see below), whose sum is σ = 472989504. Its totient is φ = 77315184.

The previous prime is 234220127. The next prime is 234220157. The reversal of 234220146 is 641022432.

It is a super-2 number, since 2×234220146² = 109718153584522632, 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, 188881 + ... + 190116.

It is an arithmetic number, because the mean of its divisors is an integer number (29561844).

Almost surely, 2^234220146 is an apocalyptic number.

234220146 is an abundant number, since it is smaller than the sum of its proper divisors (238769358).

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

234220146 is a wasteful number, since it uses less digits than its factorization.

234220146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379105.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 234220146 is about 15304.2525462696. The cubic root of 234220146 is about 616.4172010024.

Adding to 234220146 its reverse (641022432), we get a palindrome (875242578).

The spelling of 234220146 in words is "two hundred thirty-four million, two hundred twenty thousand, one hundred forty-six".