361388380 has 24 divisors (see below), whose sum is σ = 803558448. Its totient is φ = 136051968.

The previous prime is 361388369. The next prime is 361388387. The reversal of 361388380 is 83883163.

It is a super-2 number, since 2×361388380² = 261203122398048800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361388387) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531114 + ... + 531793.

It is an arithmetic number, because the mean of its divisors is an integer number (33481602).

Almost surely, 2^361388380 is an apocalyptic number.

It is an amenable number.

361388380 is an abundant number, since it is smaller than the sum of its proper divisors (442170068).

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

361388380 is a wasteful number, since it uses less digits than its factorization.

361388380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1062933 (or 1062931 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 361388380 is about 19010.2177788683. The cubic root of 361388380 is about 712.2919913981.

The spelling of 361388380 in words is "three hundred sixty-one million, three hundred eighty-eight thousand, three hundred eighty".