267025640 has 64 divisors (see below), whose sum is σ = 690370560. Its totient is φ = 91054080.

The previous prime is 267025637. The next prime is 267025651. The reversal of 267025640 is 46520762.

It is a junction number, because it is equal to n+sod(n) for n = 267025597 and 267025606.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50984 + ... + 55976.

It is an arithmetic number, because the mean of its divisors is an integer number (10787040).

Almost surely, 2^267025640 is an apocalyptic number.

267025640 is a gapful number since it is divisible by the number (20) 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 267025640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (345185280).

267025640 is an abundant number, since it is smaller than the sum of its proper divisors (423344920).

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

267025640 is a wasteful number, since it uses less digits than its factorization.

267025640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5202 (or 5198 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 267025640 is about 16340.9191907922. The cubic root of 267025640 is about 643.9482810208.

The spelling of 267025640 in words is "two hundred sixty-seven million, twenty-five thousand, six hundred forty".