26423540 has 48 divisors (see below), whose sum is σ = 65197440. Its totient is φ = 8868480.

The previous prime is 26423539. The next prime is 26423549. The reversal of 26423540 is 4532462.

It is a super-2 number, since 2×26423540² = 1396406932263200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26423549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1760 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (1358280).

Almost surely, 2^26423540 is an apocalyptic number.

26423540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26423540 is an abundant number, since it is smaller than the sum of its proper divisors (38773900).

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

26423540 is a wasteful number, since it uses less digits than its factorization.

26423540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272 (or 9270 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 26423540 is about 5140.3832541942. The cubic root of 26423540 is about 297.8495855182.

The spelling of 26423540 in words is "twenty-six million, four hundred twenty-three thousand, five hundred forty".