420040533 has 16 divisors (see below), whose sum is σ = 612910656. Its totient is φ = 253760640.

The previous prime is 420040501. The next prime is 420040561. The reversal of 420040533 is 335040024.

It is a happy number.

It is not a de Polignac number, because 420040533 - 2⁵ = 420040501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420040583) 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, 9616 + ... + 30537.

It is an arithmetic number, because the mean of its divisors is an integer number (38306916).

Almost surely, 2^420040533 is an apocalyptic number.

It is an amenable number.

420040533 is a deficient number, since it is larger than the sum of its proper divisors (192870123).

420040533 is a wasteful number, since it uses less digits than its factorization.

420040533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40484.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 420040533 is about 20494.8904120027. The cubic root of 420040533 is about 748.9113289362.

Adding to 420040533 its reverse (335040024), we get a palindrome (755080557).

The spelling of 420040533 in words is "four hundred twenty million, forty thousand, five hundred thirty-three".