100533380 has 48 divisors (see below), whose sum is σ = 215245296. Its totient is φ = 39436800.

The previous prime is 100533379. The next prime is 100533383. The reversal of 100533380 is 83335001.

It can be written as a sum of positive squares in 8 ways, for example, as 2483776 + 98049604 = 1576^2 + 9902^2 .

It is not an unprimeable number, because it can be changed into a prime (100533383) 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, 316982 + ... + 317298.

It is an arithmetic number, because the mean of its divisors is an integer number (4484277).

Almost surely, 2^100533380 is an apocalyptic number.

100533380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100533380 is an abundant number, since it is smaller than the sum of its proper divisors (114711916).

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

100533380 is a wasteful number, since it uses less digits than its factorization.

100533380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 582 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 100533380 is about 10026.6335327467. The cubic root of 100533380 is about 464.9826640163.

Adding to 100533380 its reverse (83335001), we get a palindrome (183868381).

The spelling of 100533380 in words is "one hundred million, five hundred thirty-three thousand, three hundred eighty".