26992992 has 96 divisors (see below), whose sum is σ = 78236928. Its totient is φ = 8096256.

The previous prime is 26992969. The next prime is 26993003. The reversal of 26992992 is 29929962.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×26992992² = 1457243234224128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53413 + ... + 53915.

It is an arithmetic number, because the mean of its divisors is an integer number (814968).

Almost surely, 2^26992992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26992992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39118464).

26992992 is an abundant number, since it is smaller than the sum of its proper divisors (51243936).

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

26992992 is a wasteful number, since it uses less digits than its factorization.

26992992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572 (or 564 counting only the distinct ones).

The product of its digits is 314928, while the sum is 48.

The square root of 26992992 is about 5195.4780338290. The cubic root of 26992992 is about 299.9740421985.

The spelling of 26992992 in words is "twenty-six million, nine hundred ninety-two thousand, nine hundred ninety-two".