26920530 has 192 divisors, whose sum is σ = 91203840. Its totient is φ = 5349888.

The previous prime is 26920513. The next prime is 26920577. The reversal of 26920530 is 3502962.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26920494 and 26920503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 155524 + ... + 155696.

It is an arithmetic number, because the mean of its divisors is an integer number (475020).

Almost surely, 2^26920530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26920530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45601920).

26920530 is an abundant number, since it is smaller than the sum of its proper divisors (64283310).

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

26920530 is a wasteful number, since it uses less digits than its factorization.

26920530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 26920530 is about 5188.4997831743. The cubic root of 26920530 is about 299.7053774198.

The spelling of 26920530 in words is "twenty-six million, nine hundred twenty thousand, five hundred thirty".