26099040 has 96 divisors (see below), whose sum is σ = 89703936. Its totient is φ = 6325760.

The previous prime is 26099009. The next prime is 26099081. The reversal of 26099040 is 4099062.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-3 number, since 3×26099040³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 26098989 and 26099007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2809 + ... + 7751.

It is an arithmetic number, because the mean of its divisors is an integer number (934416).

Almost surely, 2^26099040 is an apocalyptic number.

26099040 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 26099040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44851968).

26099040 is an abundant number, since it is smaller than the sum of its proper divisors (63604896).

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

26099040 is a wasteful number, since it uses less digits than its factorization.

26099040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4972 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 26099040 is about 5108.7219536788. The cubic root of 26099040 is about 296.6252912601.

26099040 divided by its sum of digits (30) gives a palindrome (869968).

The spelling of 26099040 in words is "twenty-six million, ninety-nine thousand, forty".