533421021040 has 80 divisors (see below), whose sum is σ = 1323497290752. Its totient is φ = 199236022272.

The previous prime is 533421021037. The next prime is 533421021047. The reversal of 533421021040 is 40120124335.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×533421021040² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 533421020996 and 533421021014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (533421021047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1371459 + ... + 1716898.

Almost surely, 2^533421021040 is an apocalyptic number.

It is an amenable number.

533421021040 is an abundant number, since it is smaller than the sum of its proper divisors (790076269712).

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

533421021040 is a wasteful number, since it uses less digits than its factorization.

533421021040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088514 (or 3088508 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 533421021040 its reverse (40120124335), we get a palindrome (573541145375).

The spelling of 533421021040 in words is "five hundred thirty-three billion, four hundred twenty-one million, twenty-one thousand, forty".