26190730 has 16 divisors (see below), whose sum is σ = 47353320. Its totient is φ = 10429632.

The previous prime is 26190719. The next prime is 26190739. The reversal of 26190730 is 3709162.

It can be written as a sum of positive squares in 4 ways, for example, as 23785129 + 2405601 = 4877^2 + 1551^2 .

It is not an unprimeable number, because it can be changed into a prime (26190739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429 + ... + 8008.

Almost surely, 2^26190730 is an apocalyptic number.

26190730 is a deficient number, since it is larger than the sum of its proper divisors (21162590).

26190730 is a wasteful number, since it uses less digits than its factorization.

26190730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11673.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 26190730 is about 5117.6879545357. The cubic root of 26190730 is about 296.9722489158.

Adding to 26190730 its reverse (3709162), we get a palindrome (29899892).

The spelling of 26190730 in words is "twenty-six million, one hundred ninety thousand, seven hundred thirty".