2009420469 has 72 divisors (see below), whose sum is σ = 3568181760. Its totient is φ = 1084732992.

The previous prime is 2009420453. The next prime is 2009420477. The reversal of 2009420469 is 9640249002.

It is not a de Polignac number, because 2009420469 - 2⁴ = 2009420453 is a prime.

It is a super-2 number, since 2×2009420469² = 8075541242472359922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2009420869) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 599412 + ... + 602754.

It is an arithmetic number, because the mean of its divisors is an integer number (49558080).

Almost surely, 2^2009420469 is an apocalyptic number.

2009420469 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2009420469 is a deficient number, since it is larger than the sum of its proper divisors (1558761291).

2009420469 is a wasteful number, since it uses less digits than its factorization.

2009420469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3439 (or 3429 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2009420469 is about 44826.5598613144. The cubic root of 2009420469 is about 1261.8961266404.

The spelling of 2009420469 in words is "two billion, nine million, four hundred twenty thousand, four hundred sixty-nine".