269540840 has 64 divisors (see below), whose sum is σ = 646228800. Its totient is φ = 100887552.

The previous prime is 269540801. The next prime is 269540849. The reversal of 269540840 is 48045962.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 269540794 and 269540803.

It is not an unprimeable number, because it can be changed into a prime (269540849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60944 + ... + 65216.

It is an arithmetic number, because the mean of its divisors is an integer number (10097325).

Almost surely, 2^269540840 is an apocalyptic number.

269540840 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 269540840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323114400).

269540840 is an abundant number, since it is smaller than the sum of its proper divisors (376687960).

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

269540840 is a wasteful number, since it uses less digits than its factorization.

269540840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4386 (or 4382 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 269540840 is about 16417.6989861552. The cubic root of 269540840 is about 645.9638175570.

The spelling of 269540840 in words is "two hundred sixty-nine million, five hundred forty thousand, eight hundred forty".