344678400 has 504 divisors, whose sum is σ = 1426107384. Its totient is φ = 78643200.

The previous prime is 344678387. The next prime is 344678407. The reversal of 344678400 is 4876443.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (344678407) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 20275192 + ... + 20275208.

Almost surely, 2^344678400 is an apocalyptic number.

344678400 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 344678400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713053692).

344678400 is an abundant number, since it is smaller than the sum of its proper divisors (1081428984).

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

344678400 is a wasteful number, since it uses less digits than its factorization.

344678400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 38 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 344678400 is about 18565.5164215812. The cubic root of 344678400 is about 701.1399114170.

The spelling of 344678400 in words is "three hundred forty-four million, six hundred seventy-eight thousand, four hundred".