1380362218 has 4 divisors (see below), whose sum is σ = 2070543330. Its totient is φ = 690181108.

The previous prime is 1380362173. The next prime is 1380362231. The reversal of 1380362218 is 8122630831.

It is a happy number.

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., 1149413409 + 230948809 = 33903^2 + 15197^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345090553 + ... + 345090556.

Almost surely, 2^1380362218 is an apocalyptic number.

1380362218 is a deficient number, since it is larger than the sum of its proper divisors (690181112).

1380362218 is an equidigital number, since it uses as much as digits as its factorization.

1380362218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690181111.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 1380362218 is about 37153.2262125377. The cubic root of 1380362218 is about 1113.4336813189.

The spelling of 1380362218 in words is "one billion, three hundred eighty million, three hundred sixty-two thousand, two hundred eighteen".