20789419 has 16 divisors (see below), whose sum is σ = 25776576. Its totient is φ = 16358400.

The previous prime is 20789413. The next prime is 20789423. The reversal of 20789419 is 91498702.

It is a cyclic number.

It is not a de Polignac number, because 20789419 - 2³ = 20789411 is a prime.

It is a super-2 number, since 2×20789419² = 864399884715122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20789411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2749 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (1611036).

Almost surely, 2^20789419 is an apocalyptic number.

20789419 is a deficient number, since it is larger than the sum of its proper divisors (4987157).

20789419 is a wasteful number, since it uses less digits than its factorization.

20789419 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 20789419 is about 4559.5415339703. The cubic root of 20789419 is about 274.9671321600.

The spelling of 20789419 in words is "twenty million, seven hundred eighty-nine thousand, four hundred nineteen".