265942950 has 96 divisors (see below), whose sum is σ = 811781376. Its totient is φ = 56108160.

The previous prime is 265942949. The next prime is 265942979. The reversal of 265942950 is 59249562.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3909 + ... + 23391.

It is an arithmetic number, because the mean of its divisors is an integer number (8456056).

Almost surely, 2^265942950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 265942950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405890688).

265942950 is an abundant number, since it is smaller than the sum of its proper divisors (545838426).

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

265942950 is a wasteful number, since it uses less digits than its factorization.

265942950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19518 (or 19513 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 265942950 is about 16307.7573565466. The cubic root of 265942950 is about 643.0767782147.

The spelling of 265942950 in words is "two hundred sixty-five million, nine hundred forty-two thousand, nine hundred fifty".