670404348 has 36 divisors (see below), whose sum is σ = 1696895928. Its totient is φ = 223169760.

The previous prime is 670404313. The next prime is 670404353. The reversal of 670404348 is 843404076.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15783 + ... + 39873.

It is an arithmetic number, because the mean of its divisors is an integer number (47135998).

Almost surely, 2^670404348 is an apocalyptic number.

It is an amenable number.

670404348 is an abundant number, since it is smaller than the sum of its proper divisors (1026491580).

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

670404348 is a wasteful number, since it uses less digits than its factorization.

670404348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24874 (or 24869 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 670404348 is about 25892.1676960428. The cubic root of 670404348 is about 875.2100058653.

The spelling of 670404348 in words is "six hundred seventy million, four hundred four thousand, three hundred forty-eight".