20241572 has 24 divisors (see below), whose sum is σ = 38550456. Its totient is φ = 9243648.

The previous prime is 20241563. The next prime is 20241581. The reversal of 20241572 is 27514202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20241563) and next prime (20241581).

It can be written as a sum of positive squares in 4 ways, for example, as 2483776 + 17757796 = 1576^2 + 4214^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3038 + ... + 7050.

It is an arithmetic number, because the mean of its divisors is an integer number (1606269).

Almost surely, 2^20241572 is an apocalyptic number.

It is an amenable number.

20241572 is a deficient number, since it is larger than the sum of its proper divisors (18308884).

20241572 is a wasteful number, since it uses less digits than its factorization.

20241572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4127 (or 4125 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 20241572 is about 4499.0634580988. The cubic root of 20241572 is about 272.5302696224.

Adding to 20241572 its reverse (27514202), we get a palindrome (47755774).

The spelling of 20241572 in words is "twenty million, two hundred forty-one thousand, five hundred seventy-two".