26402442 has 48 divisors (see below), whose sum is σ = 59524416. Its totient is φ = 7796800.

The previous prime is 26402437. The next prime is 26402449. The reversal of 26402442 is 24420462.

It is not an unprimeable number, because it can be changed into a prime (26402449) 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 23 ways as a sum of consecutive naturals, for example, 29323 + ... + 30209.

It is an arithmetic number, because the mean of its divisors is an integer number (1240092).

Almost surely, 2^26402442 is an apocalyptic number.

26402442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 26402442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29762208).

26402442 is an abundant number, since it is smaller than the sum of its proper divisors (33121974).

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

26402442 is a wasteful number, since it uses less digits than its factorization.

26402442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955 (or 944 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 26402442 is about 5138.3306627737. The cubic root of 26402442 is about 297.7702912753.

The spelling of 26402442 in words is "twenty-six million, four hundred two thousand, four hundred forty-two".