20435074 has 16 divisors (see below), whose sum is σ = 33755616. Its totient is φ = 9200800.

The previous prime is 20435059. The next prime is 20435099. The reversal of 20435074 is 47053402.

It is an unprimeable number.

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, 1987 + ... + 6694.

It is an arithmetic number, because the mean of its divisors is an integer number (2109726).

Almost surely, 2^20435074 is an apocalyptic number.

20435074 is a deficient number, since it is larger than the sum of its proper divisors (13320542).

20435074 is a wasteful number, since it uses less digits than its factorization.

20435074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8801.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 20435074 is about 4520.5170058302. The cubic root of 20435074 is about 273.3959467240.

Adding to 20435074 its reverse (47053402), we get a palindrome (67488476).

It can be divided in two parts, 2043 and 5074, that added together give a palindrome (7117).

The spelling of 20435074 in words is "twenty million, four hundred thirty-five thousand, seventy-four".