361285940 has 12 divisors (see below), whose sum is σ = 758700516. Its totient is φ = 144514368.

The previous prime is 361285937. The next prime is 361285949. The reversal of 361285940 is 49582163.

It is a happy number.

361285940 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 246238864 + 115047076 = 15692^2 + 10726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 361285894 and 361285903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361285949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9032129 + ... + 9032168.

It is an arithmetic number, because the mean of its divisors is an integer number (63225043).

Almost surely, 2^361285940 is an apocalyptic number.

It is an amenable number.

361285940 is an abundant number, since it is smaller than the sum of its proper divisors (397414576).

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

361285940 is a wasteful number, since it uses less digits than its factorization.

361285940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064306 (or 18064304 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 361285940 is about 19007.5232473881. The cubic root of 361285940 is about 712.2246823835.

The spelling of 361285940 in words is "three hundred sixty-one million, two hundred eighty-five thousand, nine hundred forty".