20283748 has 6 divisors (see below), whose sum is σ = 35496566. Its totient is φ = 10141872.

The previous prime is 20283727. The next prime is 20283751. The reversal of 20283748 is 84738202.

It can be written as a sum of positive squares in only one way, i.e., 18301284 + 1982464 = 4278^2 + 1408^2 .

It is a super-2 number, since 2×20283748² = 822860865855008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2535465 + ... + 2535472.

Almost surely, 2^20283748 is an apocalyptic number.

It is an amenable number.

20283748 is a deficient number, since it is larger than the sum of its proper divisors (15212818).

20283748 is a wasteful number, since it uses less digits than its factorization.

20283748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070941 (or 5070939 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 20283748 is about 4503.7482167635. The cubic root of 20283748 is about 272.7194226293.

It can be divided in two parts, 2028 and 3748, that added together give a square (5776 = 76²).

The spelling of 20283748 in words is "twenty million, two hundred eighty-three thousand, seven hundred forty-eight".