26249020 has 96 divisors (see below), whose sum is σ = 68584320. Its totient is φ = 8232960.

The previous prime is 26249011. The next prime is 26249023. The reversal of 26249020 is 2094262.

It is a super-2 number, since 2×26249020² = 1378022101920800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26249023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97446 + ... + 97714.

It is an arithmetic number, because the mean of its divisors is an integer number (714420).

Almost surely, 2^26249020 is an apocalyptic number.

26249020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26249020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34292160).

26249020 is an abundant number, since it is smaller than the sum of its proper divisors (42335300).

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

26249020 is a wasteful number, since it uses less digits than its factorization.

26249020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343 (or 341 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 26249020 is about 5123.3797438800. The cubic root of 26249020 is about 297.1923991518.

The spelling of 26249020 in words is "twenty-six million, two hundred forty-nine thousand, twenty".