412257643 has 4 divisors (see below), whose sum is σ = 471151600. Its totient is φ = 353363688.

The previous prime is 412257619. The next prime is 412257653. The reversal of 412257643 is 346752214.

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

It is a cyclic number.

It is not a de Polignac number, because 412257643 - 2¹⁷ = 412126571 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 412257599 and 412257608.

It is not an unprimeable number, because it can be changed into a prime (412257613) 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, 29446968 + ... + 29446981.

It is an arithmetic number, because the mean of its divisors is an integer number (117787900).

Almost surely, 2^412257643 is an apocalyptic number.

412257643 is a deficient number, since it is larger than the sum of its proper divisors (58893957).

412257643 is an equidigital number, since it uses as much as digits as its factorization.

412257643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58893956.

The product of its digits is 40320, while the sum is 34.

The square root of 412257643 is about 20304.1287180711. The cubic root of 412257643 is about 744.2569610687.

The spelling of 412257643 in words is "four hundred twelve million, two hundred fifty-seven thousand, six hundred forty-three".