20069420 has 36 divisors (see below), whose sum is σ = 49029120. Its totient is φ = 6880608.

The previous prime is 20069417. The next prime is 20069437. The reversal of 20069420 is 2496002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9260 + ... + 11219.

It is an arithmetic number, because the mean of its divisors is an integer number (1361920).

Almost surely, 2^20069420 is an apocalyptic number.

20069420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20069420 is an abundant number, since it is smaller than the sum of its proper divisors (28959700).

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

20069420 is a wasteful number, since it uses less digits than its factorization.

20069420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20502 (or 20493 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20069420 is about 4479.8906236648. The cubic root of 20069420 is about 271.7554571116.

The spelling of 20069420 in words is "twenty million, sixty-nine thousand, four hundred twenty".