690181382 has 16 divisors (see below), whose sum is σ = 1168333200. Its totient is φ = 302900640.

The previous prime is 690181363. The next prime is 690181391. The reversal of 690181382 is 283181096.

It is a congruent number.

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, 540257 + ... + 541532.

It is an arithmetic number, because the mean of its divisors is an integer number (73020825).

Almost surely, 2^690181382 is an apocalyptic number.

690181382 is a deficient number, since it is larger than the sum of its proper divisors (478151818).

690181382 is a wasteful number, since it uses less digits than its factorization.

690181382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081831.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 690181382 is about 26271.3033936270. The cubic root of 690181382 is about 883.7330150309.

The spelling of 690181382 in words is "six hundred ninety million, one hundred eighty-one thousand, three hundred eighty-two".