26019864 has 48 divisors (see below), whose sum is σ = 75894000. Its totient is φ = 8005824.

The previous prime is 26019841. The next prime is 26019893. The reversal of 26019864 is 46891062.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12964 + ... + 14835.

It is an arithmetic number, because the mean of its divisors is an integer number (1581125).

Almost surely, 2^26019864 is an apocalyptic number.

26019864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

26019864 is an abundant number, since it is smaller than the sum of its proper divisors (49874136).

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

26019864 is a wasteful number, since it uses less digits than its factorization.

26019864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27824 (or 27817 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 26019864 is about 5100.9669671544. The cubic root of 26019864 is about 296.3250325355.

The spelling of 26019864 in words is "twenty-six million, nineteen thousand, eight hundred sixty-four".