20472562 has 8 divisors (see below), whose sum is σ = 33500592. Its totient is φ = 9305700.

The previous prime is 20472559. The next prime is 20472583. The reversal of 20472562 is 26527402.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20472562.

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, 465264 + ... + 465307.

It is an arithmetic number, because the mean of its divisors is an integer number (4187574).

Almost surely, 2^20472562 is an apocalyptic number.

20472562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20472562 is a deficient number, since it is larger than the sum of its proper divisors (13028030).

20472562 is a wasteful number, since it uses less digits than its factorization.

20472562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930584.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 20472562 is about 4524.6615343029. The cubic root of 20472562 is about 273.5630255798.

Adding to 20472562 its reverse (26527402), we get a palindrome (46999964).

The spelling of 20472562 in words is "twenty million, four hundred seventy-two thousand, five hundred sixty-two".