312201442 has 12 divisors (see below), whose sum is σ = 544759830. Its totient is φ = 133800576.

The previous prime is 312201377. The next prime is 312201451. The reversal of 312201442 is 244102213.

It can be written as a sum of positive squares in only one way, i.e., 311910921 + 290521 = 17661^2 + 539^2 .

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, 1592767 + ... + 1592962.

Almost surely, 2^312201442 is an apocalyptic number.

312201442 is a deficient number, since it is larger than the sum of its proper divisors (232558388).

312201442 is a wasteful number, since it uses less digits than its factorization.

312201442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3185745 (or 3185738 counting only the distinct ones).

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

The square root of 312201442 is about 17669.2230163072. The cubic root of 312201442 is about 678.3882256642.

Adding to 312201442 its reverse (244102213), we get a palindrome (556303655).

The spelling of 312201442 in words is "three hundred twelve million, two hundred one thousand, four hundred forty-two".