349982400 has 168 divisors, whose sum is σ = 1216060560. Its totient is φ = 87818240.

The previous prime is 349982393. The next prime is 349982407. The reversal of 349982400 is 4289943.

It is an interprime number because it is at equal distance from previous prime (349982393) and next prime (349982407).

It is not an unprimeable number, because it can be changed into a prime (349982407) 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 23 ways as a sum of consecutive naturals, for example, 79456 + ... + 83744.

Almost surely, 2^349982400 is an apocalyptic number.

349982400 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 349982400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (608030280).

349982400 is an abundant number, since it is smaller than the sum of its proper divisors (866078160).

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

349982400 is a wasteful number, since it uses less digits than its factorization.

349982400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331 (or 4316 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 349982400 is about 18707.8165481704. The cubic root of 349982400 is about 704.7180603935.

The spelling of 349982400 in words is "three hundred forty-nine million, nine hundred eighty-two thousand, four hundred".