690342 has 8 divisors (see below), whose sum is σ = 1380696. Its totient is φ = 230112.

The previous prime is 690341. The next prime is 690367. The reversal of 690342 is 243096.

It is a sphenic number, since it is the product of 3 distinct primes.

690342 is an admirable number.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 690342.

It is not an unprimeable number, because it can be changed into a prime (690341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57523 + ... + 57534.

It is an arithmetic number, because the mean of its divisors is an integer number (172587).

2⁶⁹⁰³⁴² is an apocalyptic number.

690342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

690342 is a wasteful number, since it uses less digits than its factorization.

690342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115062.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 690342 is about 830.8682205982. The cubic root of 690342 is about 88.3801563398.

The spelling of 690342 in words is "six hundred ninety thousand, three hundred forty-two".