361402 has 4 divisors (see below), whose sum is σ = 542106. Its totient is φ = 180700.

The previous prime is 361373. The next prime is 361409. The reversal of 361402 is 204163.

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., 358801 + 2601 = 599^2 + 51^2 .

It is a super-2 number, since 2×361402² = 261222811208, which contains 22 as substring.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (361409) by changing a digit.

361402 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90349 + ... + 90352.

2³⁶¹⁴⁰² is an apocalyptic number.

361402 is a deficient number, since it is larger than the sum of its proper divisors (180704).

361402 is a wasteful number, since it uses less digits than its factorization.

361402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180703.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 361402 is about 601.1671980406. The cubic root of 361402 is about 71.2300939569.

Adding to 361402 its reverse (204163), we get a palindrome (565565).

The spelling of 361402 in words is "three hundred sixty-one thousand, four hundred two".