20107493 has 12 divisors (see below), whose sum is σ = 23890752. Its totient is φ = 16866360.

The previous prime is 20107463. The next prime is 20107519. The reversal of 20107493 is 39470102.

20107493 = T₄₆₂ + T₄₆₃ + ... + T₆₀₂.

It is not a de Polignac number, because 20107493 - 2⁶ = 20107429 is a prime.

It is a super-2 number, since 2×20107493² = 808622549490098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20107463) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2063 + ... + 6668.

It is an arithmetic number, because the mean of its divisors is an integer number (1990896).

Almost surely, 2^20107493 is an apocalyptic number.

It is an amenable number.

20107493 is a deficient number, since it is larger than the sum of its proper divisors (3783259).

20107493 is an equidigital number, since it uses as much as digits as its factorization.

20107493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8792 (or 8785 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 20107493 is about 4484.1379327581. The cubic root of 20107493 is about 271.9271945063.

Adding to 20107493 its reverse (39470102), we get a palindrome (59577595).

The spelling of 20107493 in words is "twenty million, one hundred seven thousand, four hundred ninety-three".