334213440 has 112 divisors (see below), whose sum is σ = 1157630400. Its totient is φ = 81018880.

The previous prime is 334213393. The next prime is 334213441. The reversal of 334213440 is 44312433.

It is a super-2 number, since 2×334213440² = 223397246953267200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 334213440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (334213441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5265 + ... + 26384.

Almost surely, 2^334213440 is an apocalyptic number.

334213440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 334213440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578815200).

334213440 is an abundant number, since it is smaller than the sum of its proper divisors (823416960).

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

334213440 is a wasteful number, since it uses less digits than its factorization.

334213440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31680 (or 31670 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 334213440 is about 18281.5054084722. The cubic root of 334213440 is about 693.9709699479.

Adding to 334213440 its reverse (44312433), we get a palindrome (378525873).

The spelling of 334213440 in words is "three hundred thirty-four million, two hundred thirteen thousand, four hundred forty".