312400030 has 32 divisors (see below), whose sum is σ = 592510464. Its totient is φ = 118357536.

The previous prime is 312400019. The next prime is 312400037. The reversal of 312400030 is 30004213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312400037) 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, 17097 + ... + 30283.

It is an arithmetic number, because the mean of its divisors is an integer number (18515952).

Almost surely, 2^312400030 is an apocalyptic number.

312400030 is a deficient number, since it is larger than the sum of its proper divisors (280110434).

312400030 is a wasteful number, since it uses less digits than its factorization.

312400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13320.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 312400030 is about 17674.8417248925. The cubic root of 312400030 is about 678.5320336765.

Adding to 312400030 its reverse (30004213), we get a palindrome (342404243).

The spelling of 312400030 in words is "three hundred twelve million, four hundred thousand, thirty".