26275440 has 40 divisors (see below), whose sum is σ = 81454608. Its totient is φ = 7006720.

The previous prime is 26275429. The next prime is 26275463. The reversal of 26275440 is 4457262.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 26275398 and 26275407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54501 + ... + 54980.

Almost surely, 2^26275440 is an apocalyptic number.

26275440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26275440 is an abundant number, since it is smaller than the sum of its proper divisors (55179168).

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

26275440 is a wasteful number, since it uses less digits than its factorization.

26275440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109497 (or 109491 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 30.

The square root of 26275440 is about 5125.9574715364. The cubic root of 26275440 is about 297.2920751313.

The spelling of 26275440 in words is "twenty-six million, two hundred seventy-five thousand, four hundred forty".