252400030 has 32 divisors (see below), whose sum is σ = 462345408. Its totient is φ = 99187200.

The previous prime is 252400019. The next prime is 252400039. The reversal of 252400030 is 30004252.

It is a junction number, because it is equal to n+sod(n) for n = 252399977 and 252400013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252400039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307020 + ... + 307840.

It is an arithmetic number, because the mean of its divisors is an integer number (14448294).

Almost surely, 2^252400030 is an apocalyptic number.

252400030 is a deficient number, since it is larger than the sum of its proper divisors (209945378).

252400030 is a wasteful number, since it uses less digits than its factorization.

252400030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332.

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 252400030 is about 15887.1026307505. The cubic root of 252400030 is about 631.9700070555.

Adding to 252400030 its reverse (30004252), we get a palindrome (282404282).

The spelling of 252400030 in words is "two hundred fifty-two million, four hundred thousand, thirty".