19796730 has 32 divisors (see below), whose sum is σ = 48009024. Its totient is φ = 5223936.

The previous prime is 19796713. The next prime is 19796737. The reversal of 19796730 is 3769791.

It is not an unprimeable number, because it can be changed into a prime (19796737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492 + ... + 6311.

It is an arithmetic number, because the mean of its divisors is an integer number (1500282).

Almost surely, 2^19796730 is an apocalyptic number.

19796730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19796730 is an abundant number, since it is smaller than the sum of its proper divisors (28212294).

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

19796730 is a wasteful number, since it uses less digits than its factorization.

19796730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6910.

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 19796730 is about 4449.3516381603. The cubic root of 19796730 is about 270.5190290505.

The spelling of 19796730 in words is "nineteen million, seven hundred ninety-six thousand, seven hundred thirty".