26203932240 has 40 divisors (see below), whose sum is σ = 81232190688. Its totient is φ = 6987715200.

The previous prime is 26203932211. The next prime is 26203932409. The reversal of 26203932240 is 4223930262.

It is a happy number.

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

It is a super-2 number, since 2×26203932240² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 54591286 + ... + 54591765.

Almost surely, 2^26203932240 is an apocalyptic number.

26203932240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26203932240 is an abundant number, since it is smaller than the sum of its proper divisors (55028258448).

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

26203932240 is a wasteful number, since it uses less digits than its factorization.

26203932240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109183067 (or 109183061 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

The spelling of 26203932240 in words is "twenty-six billion, two hundred three million, nine hundred thirty-two thousand, two hundred forty".