20432474 has 8 divisors (see below), whose sum is σ = 30712608. Its totient is φ = 10194940.

The previous prime is 20432449. The next prime is 20432513. The reversal of 20432474 is 47423402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9422 + ... + 11385.

It is an arithmetic number, because the mean of its divisors is an integer number (3839076).

Almost surely, 2^20432474 is an apocalyptic number.

20432474 is a deficient number, since it is larger than the sum of its proper divisors (10280134).

20432474 is a wasteful number, since it uses less digits than its factorization.

20432474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 20432474 is about 4520.2294189565. The cubic root of 20432474 is about 273.3843513070.

Adding to 20432474 its reverse (47423402), we get a palindrome (67855876).

The spelling of 20432474 in words is "twenty million, four hundred thirty-two thousand, four hundred seventy-four".