26612730 has 96 divisors (see below), whose sum is σ = 74131200. Its totient is φ = 6604416.

The previous prime is 26612713. The next prime is 26612753. The reversal of 26612730 is 3721662.

26612730 = T₇₈₁ + T₇₈₂ + ... + T₈₅₉.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26612694 and 26612703.

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, 134992 + ... + 135188.

It is an arithmetic number, because the mean of its divisors is an integer number (772200).

Almost surely, 2^26612730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26612730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37065600).

26612730 is an abundant number, since it is smaller than the sum of its proper divisors (47518470).

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

26612730 is a wasteful number, since it uses less digits than its factorization.

26612730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 26612730 is about 5158.7527562387. The cubic root of 26612730 is about 298.5587537858.

It can be divided in two parts, 266 and 12730, that added together give a square (12996 = 114²).

The spelling of 26612730 in words is "twenty-six million, six hundred twelve thousand, seven hundred thirty".