670265280 has 280 divisors, whose sum is σ = 2511582480. Its totient is φ = 169205760.

The previous prime is 670265279. The next prime is 670265303. The reversal of 670265280 is 82562076.

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 39 ways as a sum of consecutive naturals, for example, 491800 + ... + 493160.

Almost surely, 2^670265280 is an apocalyptic number.

670265280 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 670265280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1255791240).

670265280 is an abundant number, since it is smaller than the sum of its proper divisors (1841317200).

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

670265280 is a wasteful number, since it uses less digits than its factorization.

670265280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 670265280 is about 25889.4820342161. The cubic root of 670265280 is about 875.1494841207.

The spelling of 670265280 in words is "six hundred seventy million, two hundred sixty-five thousand, two hundred eighty".