342638384400 has 360 divisors, whose sum is σ = 1281476870856. Its totient is φ = 84278476800.

The previous prime is 342638384399. The next prime is 342638384443. The reversal of 342638384400 is 4483836243.

342638384400 is a `hidden beast` number, since 3 + 4 + 2 + 638 + 3 + 8 + 4 + 4 + 0 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 43052930064 + 299585454336 = 207492^2 + 547344^2 .

It is a tau number, because it is divible by the number of its divisors (360).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 106374790 + ... + 106378010.

Almost surely, 2^342638384400 is an apocalyptic number.

342638384400 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 342638384400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640738435428).

342638384400 is an abundant number, since it is smaller than the sum of its proper divisors (938838486456).

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

342638384400 is a wasteful number, since it uses less digits than its factorization.

342638384400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5531 (or 5517 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 45.

The spelling of 342638384400 in words is "three hundred forty-two billion, six hundred thirty-eight million, three hundred eighty-four thousand, four hundred".