340256400 has 240 divisors, whose sum is σ = 1203940800. Its totient is φ = 81459200.

The previous prime is 340256383. The next prime is 340256407. The reversal of 340256400 is 4652043.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is not an unprimeable number, because it can be changed into a prime (340256407) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 1966714 + ... + 1966886.

It is an arithmetic number, because the mean of its divisors is an integer number (5016420).

Almost surely, 2^340256400 is an apocalyptic number.

340256400 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 340256400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601970400).

340256400 is an abundant number, since it is smaller than the sum of its proper divisors (863684400).

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

340256400 is a wasteful number, since it uses less digits than its factorization.

340256400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 343 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 340256400 is about 18446.0402254793. The cubic root of 340256400 is about 698.1286068831.

The spelling of 340256400 in words is "three hundred forty million, two hundred fifty-six thousand, four hundred".