528422631 has 32 divisors (see below), whose sum is σ = 805828608. Its totient is φ = 304883040.

The previous prime is 528422599. The next prime is 528422647. The reversal of 528422631 is 136224825.

It is not a de Polignac number, because 528422631 - 2⁵ = 528422599 is a prime.

It is a super-2 number, since 2×528422631² = 558460953905924322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 528422592 and 528422601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (528422731) 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, 170760 + ... + 173826.

It is an arithmetic number, because the mean of its divisors is an integer number (25182144).

Almost surely, 2^528422631 is an apocalyptic number.

528422631 is a deficient number, since it is larger than the sum of its proper divisors (277405977).

528422631 is a wasteful number, since it uses less digits than its factorization.

528422631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3331.

The product of its digits is 23040, while the sum is 33.

The square root of 528422631 is about 22987.4450733438. The cubic root of 528422631 is about 808.4635972823.

The spelling of 528422631 in words is "five hundred twenty-eight million, four hundred twenty-two thousand, six hundred thirty-one".