316033642 has 4 divisors (see below), whose sum is σ = 474050466. Its totient is φ = 158016820.

The previous prime is 316033637. The next prime is 316033649. The reversal of 316033642 is 246330613.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 286320241 + 29713401 = 16921^2 + 5451^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 316033642.

It is not an unprimeable number, because it can be changed into a prime (316033649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79008409 + ... + 79008412.

Almost surely, 2^316033642 is an apocalyptic number.

316033642 is a deficient number, since it is larger than the sum of its proper divisors (158016824).

316033642 is a wasteful number, since it uses less digits than its factorization.

316033642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158016823.

The product of its (nonzero) digits is 7776, while the sum is 28.

The square root of 316033642 is about 17777.3350646265. The cubic root of 316033642 is about 681.1526313497.

It can be divided in two parts, 31603 and 3642, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 316033642 in words is "three hundred sixteen million, thirty-three thousand, six hundred forty-two".