269385990 has 64 divisors (see below), whose sum is σ = 697213440. Its totient is φ = 66389760.

The previous prime is 269385983. The next prime is 269385997. The reversal of 269385990 is 99583962.

It is an interprime number because it is at equal distance from previous prime (269385983) and next prime (269385997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (269385997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17607 + ... + 29133.

It is an arithmetic number, because the mean of its divisors is an integer number (10893960).

Almost surely, 2^269385990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 269385990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (348606720).

269385990 is an abundant number, since it is smaller than the sum of its proper divisors (427827450).

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

269385990 is a wasteful number, since it uses less digits than its factorization.

269385990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11597.

The product of its (nonzero) digits is 1049760, while the sum is 51.

The square root of 269385990 is about 16412.9823615332. The cubic root of 269385990 is about 645.8400927585.

The spelling of 269385990 in words is "two hundred sixty-nine million, three hundred eighty-five thousand, nine hundred ninety".