20010408 has 32 divisors (see below), whose sum is σ = 54574560. Its totient is φ = 6063680.

The previous prime is 20010373. The next prime is 20010409. The reversal of 20010408 is 80401002.

It is not an unprimeable number, because it can be changed into a prime (20010409) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 37635 + ... + 38162.

It is an arithmetic number, because the mean of its divisors is an integer number (1705455).

Almost surely, 2^20010408 is an apocalyptic number.

It is an amenable number.

20010408 is an abundant number, since it is smaller than the sum of its proper divisors (34564152).

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

20010408 is a wasteful number, since it uses less digits than its factorization.

20010408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75817 (or 75813 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 20010408 is about 4473.2994534236. The cubic root of 20010408 is about 271.4888395916.

The spelling of 20010408 in words is "twenty million, ten thousand, four hundred eight".