20369424 has 40 divisors (see below), whose sum is σ = 53746560. Its totient is φ = 6644608.

The previous prime is 20369399. The next prime is 20369429. The reversal of 20369424 is 42496302.

It is a junction number, because it is equal to n+sod(n) for n = 20369391 and 20369400.

It is not an unprimeable number, because it can be changed into a prime (20369429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2259 + ... + 6770.

It is an arithmetic number, because the mean of its divisors is an integer number (1343664).

Almost surely, 2^20369424 is an apocalyptic number.

20369424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20369424 is an abundant number, since it is smaller than the sum of its proper divisors (33377136).

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

20369424 is a wasteful number, since it uses less digits than its factorization.

20369424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9087 (or 9081 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 20369424 is about 4513.2498268986. The cubic root of 20369424 is about 273.1028607818.

The spelling of 20369424 in words is "twenty million, three hundred sixty-nine thousand, four hundred twenty-four".