19290069 has 28 divisors (see below), whose sum is σ = 29589696. Its totient is φ = 12564072.

The previous prime is 19290059. The next prime is 19290079. The reversal of 19290069 is 96009291.

It is an interprime number because it is at equal distance from previous prime (19290059) and next prime (19290079).

It is not a de Polignac number, because 19290069 - 2¹⁹ = 18765781 is a prime.

It is a super-2 number, since 2×19290069² = 744213524049522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19290059) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 33982 + ... + 34544.

Almost surely, 2^19290069 is an apocalyptic number.

It is an amenable number.

19290069 is a deficient number, since it is larger than the sum of its proper divisors (10299627).

19290069 is an frugal number, since it uses more digits than its factorization.

19290069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 19290069 is about 4392.0461063154. The cubic root of 19290069 is about 268.1912433518.

The spelling of 19290069 in words is "nineteen million, two hundred ninety thousand, sixty-nine".