26402943 has 16 divisors (see below), whose sum is σ = 40321280. Its totient is φ = 15054336.

The previous prime is 26402927. The next prime is 26402947. The reversal of 26402943 is 34920462.

It is not a de Polignac number, because 26402943 - 2⁴ = 26402927 is a prime.

It is a super-2 number, since 2×26402943² = 1394230798122498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26402943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402947) 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, 11028 + ... + 13206.

It is an arithmetic number, because the mean of its divisors is an integer number (2520080).

Almost surely, 2^26402943 is an apocalyptic number.

26402943 is a deficient number, since it is larger than the sum of its proper divisors (13918337).

26402943 is a wasteful number, since it uses less digits than its factorization.

26402943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 26402943 is about 5138.3794137841. The cubic root of 26402943 is about 297.7721747118.

The spelling of 26402943 in words is "twenty-six million, four hundred two thousand, nine hundred forty-three".