41812840 has 16 divisors (see below), whose sum is σ = 94078980. Its totient is φ = 16725120.

The previous prime is 41812829. The next prime is 41812847. The reversal of 41812840 is 4821814.

It can be written as a sum of positive squares in 2 ways, for example, as 36024004 + 5788836 = 6002^2 + 2406^2 .

It is a junction number, because it is equal to n+sod(n) for n = 41812799 and 41812808.

It is not an unprimeable number, because it can be changed into a prime (41812847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522621 + ... + 522700.

Almost surely, 2^41812840 is an apocalyptic number.

41812840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

41812840 is an abundant number, since it is smaller than the sum of its proper divisors (52266140).

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

41812840 is a wasteful number, since it uses less digits than its factorization.

41812840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045332 (or 1045328 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 28.

The square root of 41812840 is about 6466.2848684542. The cubic root of 41812840 is about 347.0855677381.

It can be divided in two parts, 4181 and 2840, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 41812840 in words is "forty-one million, eight hundred twelve thousand, eight hundred forty".