26623740 has 192 divisors, whose sum is σ = 91445760. Its totient is φ = 5698560.

The previous prime is 26623733. The next prime is 26623741. The reversal of 26623740 is 4732662.

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 = 26623698 and 26623707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26623741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248767 + ... + 248873.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^26623740 is an apocalyptic number.

26623740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26623740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45722880).

26623740 is an abundant number, since it is smaller than the sum of its proper divisors (64822020).

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

26623740 is a wasteful number, since it uses less digits than its factorization.

26623740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 26623740 is about 5159.8197642941. The cubic root of 26623740 is about 298.5999205341.

The spelling of 26623740 in words is "twenty-six million, six hundred twenty-three thousand, seven hundred forty".