361982142 has 64 divisors (see below), whose sum is σ = 842688000. Its totient is φ = 114960384.

The previous prime is 361982111. The next prime is 361982143. The reversal of 361982142 is 241289163.

It is a super-2 number, since 2×361982142² = 262062142253816328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 361982097 and 361982106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361982143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 470334 + ... + 471102.

It is an arithmetic number, because the mean of its divisors is an integer number (13167000).

Almost surely, 2^361982142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 361982142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (421344000).

361982142 is an abundant number, since it is smaller than the sum of its proper divisors (480705858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

361982142 is a wasteful number, since it uses less digits than its factorization.

361982142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182 (or 1176 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 361982142 is about 19025.8282868316. The cubic root of 361982142 is about 712.6818771147.

The spelling of 361982142 in words is "three hundred sixty-one million, nine hundred eighty-two thousand, one hundred forty-two".