690179244 has 12 divisors (see below), whose sum is σ = 1610418264. Its totient is φ = 230059744.

The previous prime is 690179219. The next prime is 690179249. The reversal of 690179244 is 442971096.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 690179196 and 690179205.

It is not an unprimeable number, because it can be changed into a prime (690179249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28757457 + ... + 28757480.

It is an arithmetic number, because the mean of its divisors is an integer number (134201522).

Almost surely, 2^690179244 is an apocalyptic number.

It is an amenable number.

690179244 is an abundant number, since it is smaller than the sum of its proper divisors (920239020).

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

690179244 is a wasteful number, since it uses less digits than its factorization.

690179244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57514944 (or 57514942 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 690179244 is about 26271.2627028089. The cubic root of 690179244 is about 883.7321025059.

The spelling of 690179244 in words is "six hundred ninety million, one hundred seventy-nine thousand, two hundred forty-four".