361028840 has 32 divisors (see below), whose sum is σ = 815822280. Its totient is φ = 143788032.

The previous prime is 361028809. The next prime is 361028867. The reversal of 361028840 is 48820163.

It can be written as a sum of positive squares in 4 ways, for example, as 153611236 + 207417604 = 12394^2 + 14402^2 .

It is a junction number, because it is equal to n+sod(n) for n = 361028797 and 361028806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10049 + ... + 28688.

Almost surely, 2^361028840 is an apocalyptic number.

It is an amenable number.

361028840 is an abundant number, since it is smaller than the sum of its proper divisors (454793440).

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

361028840 is a wasteful number, since it uses less digits than its factorization.

361028840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38981 (or 38977 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 361028840 is about 19000.7589322111. The cubic root of 361028840 is about 712.0556967329.

The spelling of 361028840 in words is "three hundred sixty-one million, twenty-eight thousand, eight hundred forty".