20073508 has 24 divisors (see below), whose sum is σ = 43236032. Its totient is φ = 7941024.

The previous prime is 20073463. The next prime is 20073509. The reversal of 20073508 is 80537002.

It is not an unprimeable number, because it can be changed into a prime (20073509) 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, 27210 + ... + 27937.

Almost surely, 2^20073508 is an apocalyptic number.

20073508 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

20073508 is an abundant number, since it is smaller than the sum of its proper divisors (23162524).

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

20073508 is a wasteful number, since it uses less digits than its factorization.

20073508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55171 (or 55169 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20073508 is about 4480.3468615722. The cubic root of 20073508 is about 271.7739074187.

The spelling of 20073508 in words is "twenty million, seventy-three thousand, five hundred eight".