334640442 has 16 divisors (see below), whose sum is σ = 685605312. Its totient is φ = 108826080.

The previous prime is 334640437. The next prime is 334640473. The reversal of 334640442 is 244046433.

It is a super-2 number, since 2×334640442² = 223968450843910728, 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, 679918 + ... + 680409.

It is an arithmetic number, because the mean of its divisors is an integer number (42850332).

Almost surely, 2^334640442 is an apocalyptic number.

334640442 is an abundant number, since it is smaller than the sum of its proper divisors (350964870).

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

334640442 is a wasteful number, since it uses less digits than its factorization.

334640442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360373.

The product of its (nonzero) digits is 27648, while the sum is 30.

The square root of 334640442 is about 18293.1802046555. The cubic root of 334640442 is about 694.2663908248.

Adding to 334640442 its reverse (244046433), we get a palindrome (578686875).

The spelling of 334640442 in words is "three hundred thirty-four million, six hundred forty thousand, four hundred forty-two".