1380090 has 32 divisors (see below), whose sum is σ = 3343680. Its totient is φ = 364544.

The previous prime is 1380083. The next prime is 1380149. The reversal of 1380090 is 900831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5242 + ... + 5498.

It is an arithmetic number, because the mean of its divisors is an integer number (104490).

2^1380090 is an apocalyptic number.

1380090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1380090 is an abundant number, since it is smaller than the sum of its proper divisors (1963590).

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

1380090 is a wasteful number, since it uses less digits than its factorization.

1380090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1380090 is about 1174.7723183664. The cubic root of 1380090 is about 111.3360483957.

The spelling of 1380090 in words is "one million, three hundred eighty thousand, ninety".