240856380 has 72 divisors (see below), whose sum is σ = 744412032. Its totient is φ = 63014016.

The previous prime is 240856379. The next prime is 240856381. The reversal of 240856380 is 83658042.

It is an interprime number because it is at equal distance from previous prime (240856379) and next prime (240856381).

It is a super-3 number, since 3×240856380³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240856381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3084 + ... + 22163.

It is an arithmetic number, because the mean of its divisors is an integer number (10339056).

Almost surely, 2^240856380 is an apocalyptic number.

240856380 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 240856380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (372206016).

240856380 is an abundant number, since it is smaller than the sum of its proper divisors (503555652).

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

240856380 is a wasteful number, since it uses less digits than its factorization.

240856380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25315 (or 25310 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The square root of 240856380 is about 15519.5483181696. The cubic root of 240856380 is about 622.1847825876.

The spelling of 240856380 in words is "two hundred forty million, eight hundred fifty-six thousand, three hundred eighty".