242130400 has 36 divisors (see below), whose sum is σ = 591102792. Its totient is φ = 96851840.

The previous prime is 242130389. The next prime is 242130419. The reversal of 242130400 is 4031242.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 150532 + ... + 152131.

It is an arithmetic number, because the mean of its divisors is an integer number (16419522).

Almost surely, 2^242130400 is an apocalyptic number.

242130400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242130400 is an abundant number, since it is smaller than the sum of its proper divisors (348972392).

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

242130400 is a wasteful number, since it uses less digits than its factorization.

242130400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302683 (or 302670 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 242130400 is about 15560.5398363939. The cubic root of 242130400 is about 623.2798782328.

Adding to 242130400 its reverse (4031242), we get a palindrome (246161642).

The spelling of 242130400 in words is "two hundred forty-two million, one hundred thirty thousand, four hundred".