670464142 has 4 divisors (see below), whose sum is σ = 1005696216. Its totient is φ = 335232070.

The previous prime is 670464131. The next prime is 670464149. The reversal of 670464142 is 241464076.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 670464098 and 670464107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (670464149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167616034 + ... + 167616037.

It is an arithmetic number, because the mean of its divisors is an integer number (251424054).

Almost surely, 2^670464142 is an apocalyptic number.

670464142 is a deficient number, since it is larger than the sum of its proper divisors (335232074).

670464142 is a wasteful number, since it uses less digits than its factorization.

670464142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335232073.

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 670464142 is about 25893.3223438013. The cubic root of 670464142 is about 875.2360253620.

The spelling of 670464142 in words is "six hundred seventy million, four hundred sixty-four thousand, one hundred forty-two".