670400734 has 16 divisors (see below), whose sum is σ = 1049915520. Its totient is φ = 320445400.

The previous prime is 670400719. The next prime is 670400741. The reversal of 670400734 is 437004076.

It is a junction number, because it is equal to n+sod(n) for n = 670400696 and 670400705.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115809 + ... + 121459.

It is an arithmetic number, because the mean of its divisors is an integer number (65619720).

Almost surely, 2^670400734 is an apocalyptic number.

670400734 is a deficient number, since it is larger than the sum of its proper divisors (379514786).

670400734 is a wasteful number, since it uses less digits than its factorization.

670400734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8255.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 670400734 is about 25892.0979065042. The cubic root of 670400734 is about 875.2084331753.

The spelling of 670400734 in words is "six hundred seventy million, four hundred thousand, seven hundred thirty-four".