334400240 has 40 divisors (see below), whose sum is σ = 778761168. Its totient is φ = 133539840.

The previous prime is 334400239. The next prime is 334400249. The reversal of 334400240 is 42004433.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×334400240² = 223647041024115200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334400249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50735 + ... + 56945.

Almost surely, 2^334400240 is an apocalyptic number.

It is an amenable number.

334400240 is an abundant number, since it is smaller than the sum of its proper divisors (444360928).

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

334400240 is a wasteful number, since it uses less digits than its factorization.

334400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897 (or 6891 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 334400240 is about 18286.6136832383. The cubic root of 334400240 is about 694.1002382710.

Adding to 334400240 its reverse (42004433), we get a palindrome (376404673).

The spelling of 334400240 in words is "three hundred thirty-four million, four hundred thousand, two hundred forty".