20133488 has 10 divisors (see below), whose sum is σ = 39008664. Its totient is φ = 10066736.

The previous prime is 20133479. The next prime is 20133497. The reversal of 20133488 is 88433102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20133479) and next prime (20133497).

It is a super-2 number, since 2×20133488² = 810714678092288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20133488.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629156 + ... + 629187.

Almost surely, 2^20133488 is an apocalyptic number.

It is an amenable number.

20133488 is a deficient number, since it is larger than the sum of its proper divisors (18875176).

20133488 is a wasteful number, since it uses less digits than its factorization.

20133488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258351 (or 1258345 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 20133488 is about 4487.0355469954. The cubic root of 20133488 is about 272.0443266859.

The spelling of 20133488 in words is "twenty million, one hundred thirty-three thousand, four hundred eighty-eight".