412820542 has 4 divisors (see below), whose sum is σ = 619230816. Its totient is φ = 206410270.

The previous prime is 412820531. The next prime is 412820549. The reversal of 412820542 is 245028214.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 412820542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (412820549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103205134 + ... + 103205137.

It is an arithmetic number, because the mean of its divisors is an integer number (154807704).

Almost surely, 2^412820542 is an apocalyptic number.

412820542 is a deficient number, since it is larger than the sum of its proper divisors (206410274).

412820542 is a wasteful number, since it uses less digits than its factorization.

412820542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206410273.

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 412820542 is about 20317.9856777191. The cubic root of 412820542 is about 744.5955446185.

Adding to 412820542 its reverse (245028214), we get a palindrome (657848756).

The spelling of 412820542 in words is "four hundred twelve million, eight hundred twenty thousand, five hundred forty-two".