312404042 has 16 divisors (see below), whose sum is σ = 493614240. Its totient is φ = 147877488.

The previous prime is 312404041. The next prime is 312404077. The reversal of 312404042 is 240404213.

It is not an unprimeable number, because it can be changed into a prime (312404041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101348 + ... + 104384.

It is an arithmetic number, because the mean of its divisors is an integer number (30850890).

Almost surely, 2^312404042 is an apocalyptic number.

312404042 is a deficient number, since it is larger than the sum of its proper divisors (181210198).

312404042 is a wasteful number, since it uses less digits than its factorization.

312404042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 312404042 is about 17674.9552191795. The cubic root of 312404042 is about 678.5349383485.

Adding to 312404042 its reverse (240404213), we get a palindrome (552808255).

The spelling of 312404042 in words is "three hundred twelve million, four hundred four thousand, forty-two".