265494240 has 384 divisors, whose sum is σ = 1047997440. Its totient is φ = 62208000.

The previous prime is 265494233. The next prime is 265494241. The reversal of 265494240 is 42494562.

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

It is a junction number, because it is equal to n+sod(n) for n = 265494195 and 265494204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (265494241) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1758165 + ... + 1758315.

It is an arithmetic number, because the mean of its divisors is an integer number (2729160).

Almost surely, 2^265494240 is an apocalyptic number.

265494240 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 265494240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523998720).

265494240 is an abundant number, since it is smaller than the sum of its proper divisors (782503200).

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

265494240 is a wasteful number, since it uses less digits than its factorization.

265494240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223 (or 209 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 265494240 is about 16293.9939855150. The cubic root of 265494240 is about 642.7148993221.

The spelling of 265494240 in words is "two hundred sixty-five million, four hundred ninety-four thousand, two hundred forty".