20429054 has 4 divisors (see below), whose sum is σ = 30643584. Its totient is φ = 10214526.

The previous prime is 20429033. The next prime is 20429063. The reversal of 20429054 is 45092402.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5107262 + ... + 5107265.

It is an arithmetic number, because the mean of its divisors is an integer number (7660896).

Almost surely, 2^20429054 is an apocalyptic number.

20429054 is a deficient number, since it is larger than the sum of its proper divisors (10214530).

20429054 is a wasteful number, since it uses less digits than its factorization.

20429054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214529.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 20429054 is about 4519.8511037422. The cubic root of 20429054 is about 273.3690973759.

The spelling of 20429054 in words is "twenty million, four hundred twenty-nine thousand, fifty-four".