19072990 has 16 divisors (see below), whose sum is σ = 34431552. Its totient is φ = 7606944.

The previous prime is 19072973. The next prime is 19072993. The reversal of 19072990 is 9927091.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19072993) 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 7 ways as a sum of consecutive naturals, for example, 1072 + ... + 6268.

It is an arithmetic number, because the mean of its divisors is an integer number (2151972).

Almost surely, 2^19072990 is an apocalyptic number.

19072990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19072990 is a deficient number, since it is larger than the sum of its proper divisors (15358562).

19072990 is a wasteful number, since it uses less digits than its factorization.

19072990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 19072990 is about 4367.2634452252. The cubic root of 19072990 is about 267.1814241063.

The spelling of 19072990 in words is "nineteen million, seventy-two thousand, nine hundred ninety".