18049796 has 6 divisors (see below), whose sum is σ = 31587150. Its totient is φ = 9024896.

The previous prime is 18049793. The next prime is 18049807. The reversal of 18049796 is 69794081.

It can be written as a sum of positive squares in only one way, i.e., 9523396 + 8526400 = 3086^2 + 2920^2 .

It is not an unprimeable number, because it can be changed into a prime (18049793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2256221 + ... + 2256228.

It is an arithmetic number, because the mean of its divisors is an integer number (5264525).

Almost surely, 2^18049796 is an apocalyptic number.

It is an amenable number.

18049796 is a deficient number, since it is larger than the sum of its proper divisors (13537354).

18049796 is a wasteful number, since it uses less digits than its factorization.

18049796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4512453 (or 4512451 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 18049796 is about 4248.5051488730. The cubic root of 18049796 is about 262.3155880885.

The spelling of 18049796 in words is "eighteen million, forty-nine thousand, seven hundred ninety-six".