533869440 has 256 divisors, whose sum is σ = 1864054080. Its totient is φ = 129171456.

The previous prime is 533869433. The next prime is 533869447. The reversal of 533869440 is 44968335.

It is an interprime number because it is at equal distance from previous prime (533869433) and next prime (533869447).

It is a junction number, because it is equal to n+sod(n) for n = 533869392 and 533869401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533869447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1821934 + ... + 1822226.

Almost surely, 2^533869440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 533869440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (932027040).

533869440 is an abundant number, since it is smaller than the sum of its proper divisors (1330184640).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

533869440 is a wasteful number, since it uses less digits than its factorization.

533869440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 533869440 is about 23105.6149020103. The cubic root of 533869440 is about 811.2319008342.

It can be divided in two parts, 53386 and 9440, that added together give a palindrome (62826).

The spelling of 533869440 in words is "five hundred thirty-three million, eight hundred sixty-nine thousand, four hundred forty".