20474435 has 16 divisors (see below), whose sum is σ = 25552800. Its totient is φ = 15730176.

The previous prime is 20474429. The next prime is 20474449. The reversal of 20474435 is 53447402.

It is a cyclic number.

It is not a de Polignac number, because 20474435 - 2⁶ = 20474371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a junction number, because it is equal to n+sod(n) for n = 20474398 and 20474407.

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 15 ways as a sum of consecutive naturals, for example, 48656 + ... + 49074.

It is an arithmetic number, because the mean of its divisors is an integer number (1597050).

Almost surely, 2^20474435 is an apocalyptic number.

20474435 is a deficient number, since it is larger than the sum of its proper divisors (5078365).

20474435 is a wasteful number, since it uses less digits than its factorization.

20474435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 20474435 is about 4524.8685063767. The cubic root of 20474435 is about 273.5713679313.

The spelling of 20474435 in words is "twenty million, four hundred seventy-four thousand, four hundred thirty-five".