234990945 has 48 divisors (see below), whose sum is σ = 466652160. Its totient is φ = 107160192.

The previous prime is 234990937. The next prime is 234990947. The reversal of 234990945 is 549099432.

It is a happy number.

It is not a de Polignac number, because 234990945 - 2³ = 234990937 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 234990945.

It is not an unprimeable number, because it can be changed into a prime (234990947) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 190591 + ... + 191819.

It is an arithmetic number, because the mean of its divisors is an integer number (9721920).

Almost surely, 2^234990945 is an apocalyptic number.

It is an amenable number.

234990945 is a deficient number, since it is larger than the sum of its proper divisors (231661215).

234990945 is a wasteful number, since it uses less digits than its factorization.

234990945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1854 (or 1851 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 234990945 is about 15329.4143723757. The cubic root of 234990945 is about 617.0926531535.

The spelling of 234990945 in words is "two hundred thirty-four million, nine hundred ninety thousand, nine hundred forty-five".