361398442 has 4 divisors (see below), whose sum is σ = 542097666. Its totient is φ = 180699220.

The previous prime is 361398431. The next prime is 361398451. The reversal of 361398442 is 244893163.

It is a happy number.

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., 246458601 + 114939841 = 15699^2 + 10721^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 361398395 and 361398404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90349609 + ... + 90349612.

Almost surely, 2^361398442 is an apocalyptic number.

361398442 is a deficient number, since it is larger than the sum of its proper divisors (180699224).

361398442 is a wasteful number, since it uses less digits than its factorization.

361398442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180699223.

The product of its digits is 124416, while the sum is 40.

The square root of 361398442 is about 19010.4824241785. The cubic root of 361398442 is about 712.2986020289.

The spelling of 361398442 in words is "three hundred sixty-one million, three hundred ninety-eight thousand, four hundred forty-two".