404988234 has 48 divisors (see below), whose sum is σ = 943887168. Its totient is φ = 115506048.

The previous prime is 404988223. The next prime is 404988239. The reversal of 404988234 is 432889404.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (404988239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 260002 + ... + 261554.

It is an arithmetic number, because the mean of its divisors is an integer number (19664316).

Almost surely, 2^404988234 is an apocalyptic number.

404988234 is an abundant number, since it is smaller than the sum of its proper divisors (538898934).

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

404988234 is a wasteful number, since it uses less digits than its factorization.

404988234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 404988234 is about 20124.3194667546. The cubic root of 404988234 is about 739.8564574270.

The spelling of 404988234 in words is "four hundred four million, nine hundred eighty-eight thousand, two hundred thirty-four".