20474470 has 16 divisors (see below), whose sum is σ = 37182240. Its totient is φ = 8116864.

The previous prime is 20474459. The next prime is 20474473. The reversal of 20474470 is 7447402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20474473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7930 + ... + 10189.

It is an arithmetic number, because the mean of its divisors is an integer number (2323890).

Almost surely, 2^20474470 is an apocalyptic number.

20474470 is a deficient number, since it is larger than the sum of its proper divisors (16707770).

20474470 is a wasteful number, since it uses less digits than its factorization.

20474470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18239.

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 20474470 is about 4524.8723738908. The cubic root of 20474470 is about 273.5715238166.

The spelling of 20474470 in words is "twenty million, four hundred seventy-four thousand, four hundred seventy".