18037796 has 48 divisors (see below), whose sum is σ = 38712576. Its totient is φ = 7185024.

The previous prime is 18037793. The next prime is 18037823. The reversal of 18037796 is 69773081.

It is not an unprimeable number, because it can be changed into a prime (18037793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23450 + ... + 24206.

It is an arithmetic number, because the mean of its divisors is an integer number (806512).

Almost surely, 2^18037796 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 18037796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19356288).

18037796 is an abundant number, since it is smaller than the sum of its proper divisors (20674780).

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

18037796 is a wasteful number, since it uses less digits than its factorization.

18037796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828 (or 826 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 41.

The square root of 18037796 is about 4247.0926526272. The cubic root of 18037796 is about 262.2574436660.

The spelling of 18037796 in words is "eighteen million, thirty-seven thousand, seven hundred ninety-six".