670370040 has 128 divisors (see below), whose sum is σ = 2306764800. Its totient is φ = 172990080.

The previous prime is 670370039. The next prime is 670370069. The reversal of 670370040 is 40073076.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 670369986 and 670370013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23469 + ... + 43491.

It is an arithmetic number, because the mean of its divisors is an integer number (18021600).

Almost surely, 2^670370040 is an apocalyptic number.

670370040 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 670370040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1153382400).

670370040 is an abundant number, since it is smaller than the sum of its proper divisors (1636394760).

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

670370040 is a wasteful number, since it uses less digits than its factorization.

670370040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20074 (or 20064 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 670370040 is about 25891.5051706153. The cubic root of 670370040 is about 875.1950759615.

The spelling of 670370040 in words is "six hundred seventy million, three hundred seventy thousand, forty".