19793090 has 16 divisors (see below), whose sum is σ = 35849088. Its totient is φ = 7868016.

The previous prime is 19793047. The next prime is 19793099. The reversal of 19793090 is 9039791.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (19793099) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4442 + ... + 7701.

It is an arithmetic number, because the mean of its divisors is an integer number (2240568).

Almost surely, 2^19793090 is an apocalyptic number.

19793090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19793090 is a deficient number, since it is larger than the sum of its proper divisors (16055998).

19793090 is a wasteful number, since it uses less digits than its factorization.

19793090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12313.

The product of its (nonzero) digits is 15309, while the sum is 38.

The square root of 19793090 is about 4448.9425709937. The cubic root of 19793090 is about 270.5024480356.

The spelling of 19793090 in words is "nineteen million, seven hundred ninety-three thousand, ninety".