334640400 has 60 divisors (see below), whose sum is σ = 1071968592. Its totient is φ = 89237120.

The previous prime is 334640387. The next prime is 334640429. The reversal of 334640400 is 4046433.

It is a tau number, because it is divible by the number of its divisors (60).

It is a super-2 number, since 2×334640400² = 223968394624320000, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 138234 + ... + 140633.

Almost surely, 2^334640400 is an apocalyptic number.

334640400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

334640400 is an abundant number, since it is smaller than the sum of its proper divisors (737328192).

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

334640400 is a wasteful number, since it uses less digits than its factorization.

334640400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278888 (or 278877 counting only the distinct ones).

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

The square root of 334640400 is about 18293.1790566867. The cubic root of 334640400 is about 694.2663617795.

Adding to 334640400 its reverse (4046433), we get a palindrome (338686833).

The spelling of 334640400 in words is "three hundred thirty-four million, six hundred forty thousand, four hundred".