400045230 has 80 divisors (see below), whose sum is σ = 1158452064. Its totient is φ = 98470080.

The previous prime is 400045229. The next prime is 400045237. The reversal of 400045230 is 32540004.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400045237) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 8466 + ... + 29525.

Almost surely, 2^400045230 is an apocalyptic number.

400045230 is an abundant number, since it is smaller than the sum of its proper divisors (758406834).

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

400045230 is a wasteful number, since it uses less digits than its factorization.

400045230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38023 (or 38014 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 400045230 is about 20001.1307180369. The cubic root of 400045230 is about 736.8340701388.

Adding to 400045230 its reverse (32540004), we get a palindrome (432585234).

The spelling of 400045230 in words is "four hundred million, forty-five thousand, two hundred thirty".