20476342 has 16 divisors (see below), whose sum is σ = 31558032. Its totient is φ = 9959040.

The previous prime is 20476333. The next prime is 20476361. The reversal of 20476342 is 24367402.

It is a self number, because there is not a number n which added to its sum of digits gives 20476342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39042 + ... + 39562.

It is an arithmetic number, because the mean of its divisors is an integer number (1972377).

Almost surely, 2^20476342 is an apocalyptic number.

20476342 is a deficient number, since it is larger than the sum of its proper divisors (11081690).

20476342 is a wasteful number, since it uses less digits than its factorization.

20476342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 20476342 is about 4525.0792258258. The cubic root of 20476342 is about 273.5798611962.

The spelling of 20476342 in words is "twenty million, four hundred seventy-six thousand, three hundred forty-two".