26875290 has 64 divisors (see below), whose sum is σ = 70108416. Its totient is φ = 6554112.

The previous prime is 26875273. The next prime is 26875307. The reversal of 26875290 is 9257862.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (26875273) and next prime (26875307).

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53179 + ... + 53681.

It is an arithmetic number, because the mean of its divisors is an integer number (1095444).

Almost surely, 2^26875290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26875290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35054208).

26875290 is an abundant number, since it is smaller than the sum of its proper divisors (43233126).

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

26875290 is a wasteful number, since it uses less digits than its factorization.

26875290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 26875290 is about 5184.1383083402. The cubic root of 26875290 is about 299.5373981428.

The spelling of 26875290 in words is "twenty-six million, eight hundred seventy-five thousand, two hundred ninety".