20073418 has 16 divisors (see below), whose sum is σ = 30948480. Its totient is φ = 9760096.

The previous prime is 20073397. The next prime is 20073419. The reversal of 20073418 is 81437002.

It is a super-2 number, since 2×20073418² = 805884220405448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20073392 and 20073401.

It is not an unprimeable number, because it can be changed into a prime (20073419) 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, 16230 + ... + 17422.

It is an arithmetic number, because the mean of its divisors is an integer number (1934280).

Almost surely, 2^20073418 is an apocalyptic number.

20073418 is a deficient number, since it is larger than the sum of its proper divisors (10875062).

20073418 is a wasteful number, since it uses less digits than its factorization.

20073418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 20073418 is about 4480.3368176957. The cubic root of 20073418 is about 271.7735012500.

The spelling of 20073418 in words is "twenty million, seventy-three thousand, four hundred eighteen".