412445521 has 8 divisors (see below), whose sum is σ = 435726080. Its totient is φ = 389322288.

The previous prime is 412445503. The next prime is 412445531. The reversal of 412445521 is 125544214.

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

It is a cyclic number.

It is not a de Polignac number, because 412445521 - 2⁵ = 412445489 is a prime.

It is a super-2 number, since 2×412445521² = 340222615585922882, 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 412445521.

It is not an unprimeable number, because it can be changed into a prime (412445531) 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, 33921 + ... + 44446.

It is an arithmetic number, because the mean of its divisors is an integer number (54465760).

Almost surely, 2^412445521 is an apocalyptic number.

It is an amenable number.

412445521 is a deficient number, since it is larger than the sum of its proper divisors (23280559).

412445521 is a wasteful number, since it uses less digits than its factorization.

412445521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78663.

The product of its digits is 6400, while the sum is 28.

The square root of 412445521 is about 20308.7547870370. The cubic root of 412445521 is about 744.3700038674.

Adding to 412445521 its reverse (125544214), we get a palindrome (537989735).

The spelling of 412445521 in words is "four hundred twelve million, four hundred forty-five thousand, five hundred twenty-one".