670373780 has 24 divisors (see below), whose sum is σ = 1442122920. Its totient is φ = 261608960.

The previous prime is 670373779. The next prime is 670373813. The reversal of 670373780 is 87373076.

670373780 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 23078416 + 647295364 = 4804^2 + 25442^2 .

It is a super-2 number, since 2×670373780² = 898802009822976800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

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, 407945 + ... + 409584.

It is an arithmetic number, because the mean of its divisors is an integer number (60088455).

Almost surely, 2^670373780 is an apocalyptic number.

It is an amenable number.

670373780 is an abundant number, since it is smaller than the sum of its proper divisors (771749140).

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

670373780 is a wasteful number, since it uses less digits than its factorization.

670373780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817579 (or 817577 counting only the distinct ones).

The product of its (nonzero) digits is 148176, while the sum is 41.

The square root of 670373780 is about 25891.5773949754. The cubic root of 670373780 is about 875.1967035320.

The spelling of 670373780 in words is "six hundred seventy million, three hundred seventy-three thousand, seven hundred eighty".