3180442 has 4 divisors (see below), whose sum is σ = 4770666. Its totient is φ = 1590220.

The previous prime is 3180431. The next prime is 3180451. The reversal of 3180442 is 2440813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2440813 = 127 ⋅19219.

It can be written as a sum of positive squares in only one way, i.e., 1615441 + 1565001 = 1271^2 + 1251^2 .

It is a super-2 number, since 2×3180442² = 20230422630728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 795109 + ... + 795112.

Almost surely, 2^3180442 is an apocalyptic number.

3180442 is a deficient number, since it is larger than the sum of its proper divisors (1590224).

3180442 is a wasteful number, since it uses less digits than its factorization.

3180442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590223.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 3180442 is about 1783.3793763527. The cubic root of 3180442 is about 147.0604283621.

The spelling of 3180442 in words is "three million, one hundred eighty thousand, four hundred forty-two".