312241402 has 16 divisors (see below), whose sum is σ = 537832800. Its totient is φ = 134457840.

The previous prime is 312241343. The next prime is 312241427. The reversal of 312241402 is 204142213.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 312241402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 373077 + ... + 373912.

It is an arithmetic number, because the mean of its divisors is an integer number (33614550).

Almost surely, 2^312241402 is an apocalyptic number.

312241402 is a deficient number, since it is larger than the sum of its proper divisors (225591398).

312241402 is a wasteful number, since it uses less digits than its factorization.

312241402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747021.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 312241402 is about 17670.3537598997. The cubic root of 312241402 is about 678.4171677012.

Adding to 312241402 its reverse (204142213), we get a palindrome (516383615).

The spelling of 312241402 in words is "three hundred twelve million, two hundred forty-one thousand, four hundred two".