26265630 has 16 divisors (see below), whose sum is σ = 63037584. Its totient is φ = 7004160.

The previous prime is 26265559. The next prime is 26265637. The reversal of 26265630 is 3656262.

26265630 = 2561² + 2562² + ... + 2564².

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 875521 = 26265630 / (2 + 6 + 2 + 6 + 5 + 6 + 3 + 0).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26265637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437731 + ... + 437790.

It is an arithmetic number, because the mean of its divisors is an integer number (3939849).

Almost surely, 2^26265630 is an apocalyptic number.

26265630 is an abundant number, since it is smaller than the sum of its proper divisors (36771954).

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

26265630 is a wasteful number, since it uses less digits than its factorization.

26265630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875531.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 26265630 is about 5125.0004878049. Note that the first 3 decimals coincide. The cubic root of 26265630 is about 297.2550722839.

It can be divided in two parts, 2626 and 5630, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 26265630 in words is "twenty-six million, two hundred sixty-five thousand, six hundred thirty".