20146336 has 24 divisors (see below), whose sum is σ = 45329760. Its totient is φ = 8634048.

The previous prime is 20146331. The next prime is 20146337. The reversal of 20146336 is 63364102.

It is a self number, because there is not a number n which added to its sum of digits gives 20146336.

It is not an unprimeable number, because it can be changed into a prime (20146331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44746 + ... + 45193.

It is an arithmetic number, because the mean of its divisors is an integer number (1888740).

Almost surely, 2^20146336 is an apocalyptic number.

It is an amenable number.

20146336 is an abundant number, since it is smaller than the sum of its proper divisors (25183424).

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

20146336 is an equidigital number, since it uses as much as digits as its factorization.

20146336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89956 (or 89948 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 20146336 is about 4488.4669988761. The cubic root of 20146336 is about 272.1021819085.

The spelling of 20146336 in words is "twenty million, one hundred forty-six thousand, three hundred thirty-six".