413533981 has 6 divisors (see below), whose sum is σ = 481049790. Its totient is φ = 354457656.

The previous prime is 413533973. The next prime is 413533987. The reversal of 413533981 is 189335314.

It can be written as a sum of positive squares in only one way, i.e., 398002500 + 15531481 = 19950^2 + 3941^2 .

It is not a de Polignac number, because 413533981 - 2³ = 413533973 is a prime.

It is a super-2 number, since 2×413533981² = 342020706883416722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 413533981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (413533987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4219686 + ... + 4219783.

It is an arithmetic number, because the mean of its divisors is an integer number (80174965).

Almost surely, 2^413533981 is an apocalyptic number.

It is an amenable number.

413533981 is a deficient number, since it is larger than the sum of its proper divisors (67515809).

413533981 is an equidigital number, since it uses as much as digits as its factorization.

413533981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8439483 (or 8439476 counting only the distinct ones).

The product of its digits is 38880, while the sum is 37.

The square root of 413533981 is about 20335.5349327231. The cubic root of 413533981 is about 745.0242359577.

The spelling of 413533981 in words is "four hundred thirteen million, five hundred thirty-three thousand, nine hundred eighty-one".