20146435 has 16 divisors (see below), whose sum is σ = 25390080. Its totient is φ = 15325920.

The previous prime is 20146433. The next prime is 20146453. The reversal of 20146435 is 53464102.

It is not a de Polignac number, because 20146435 - 2¹ = 20146433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20146433) 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 15 ways as a sum of consecutive naturals, for example, 8044 + ... + 10246.

It is an arithmetic number, because the mean of its divisors is an integer number (1586880).

Almost surely, 2^20146435 is an apocalyptic number.

20146435 is a deficient number, since it is larger than the sum of its proper divisors (5243645).

20146435 is a wasteful number, since it uses less digits than its factorization.

20146435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2298.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20146435 is about 4488.4780271268. The cubic root of 20146435 is about 272.1026276152.

The spelling of 20146435 in words is "twenty million, one hundred forty-six thousand, four hundred thirty-five".