40820529 has 8 divisors (see below), whose sum is σ = 55319872. Its totient is φ = 26767440.

The previous prime is 40820503. The next prime is 40820537. The reversal of 40820529 is 92502804.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40820529 - 2⁵ = 40820497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40820496 and 40820505.

It is not an unprimeable number, because it can be changed into a prime (40820599) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111349 + ... + 111714.

It is an arithmetic number, because the mean of its divisors is an integer number (6914984).

Almost surely, 2^40820529 is an apocalyptic number.

It is an amenable number.

40820529 is a deficient number, since it is larger than the sum of its proper divisors (14499343).

40820529 is a wasteful number, since it uses less digits than its factorization.

40820529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223127.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 40820529 is about 6389.0945367869. The cubic root of 40820529 is about 344.3178539744.

The spelling of 40820529 in words is "forty million, eight hundred twenty thousand, five hundred twenty-nine".