690510142 has 8 divisors (see below), whose sum is σ = 1183731696. Its totient is φ = 295932912.

The previous prime is 690510137. The next prime is 690510157. The reversal of 690510142 is 241015096.

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

It is a self number, because there is not a number n which added to its sum of digits gives 690510142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24661063 + ... + 24661090.

It is an arithmetic number, because the mean of its divisors is an integer number (147966462).

Almost surely, 2^690510142 is an apocalyptic number.

690510142 is a deficient number, since it is larger than the sum of its proper divisors (493221554).

690510142 is a wasteful number, since it uses less digits than its factorization.

690510142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49322162.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 690510142 is about 26277.5596659964. The cubic root of 690510142 is about 883.8733114586.

The spelling of 690510142 in words is "six hundred ninety million, five hundred ten thousand, one hundred forty-two".