26798530 has 16 divisors (see below), whose sum is σ = 52622784. Its totient is φ = 9744880.

The previous prime is 26798509. The next prime is 26798537. The reversal of 26798530 is 3589762.

It is a super-2 number, since 2×26798530² = 1436322420321800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (26798537) 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, 121702 + ... + 121921.

It is an arithmetic number, because the mean of its divisors is an integer number (3288924).

Almost surely, 2^26798530 is an apocalyptic number.

26798530 is a deficient number, since it is larger than the sum of its proper divisors (25824254).

26798530 is a wasteful number, since it uses less digits than its factorization.

26798530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243641.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 26798530 is about 5176.7296626345. The cubic root of 26798530 is about 299.2519511080.

The spelling of 26798530 in words is "twenty-six million, seven hundred ninety-eight thousand, five hundred thirty".