412681642 has 4 divisors (see below), whose sum is σ = 619022466. Its totient is φ = 206340820.

The previous prime is 412681631. The next prime is 412681651. The reversal of 412681642 is 246186214.

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

It can be written as a sum of positive squares in only one way, i.e., 356416641 + 56265001 = 18879^2 + 7501^2 .

It is a super-2 number, since 2×412681642² = 340612275287632328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 412681598 and 412681607.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103170409 + ... + 103170412.

Almost surely, 2^412681642 is an apocalyptic number.

412681642 is a deficient number, since it is larger than the sum of its proper divisors (206340824).

412681642 is a wasteful number, since it uses less digits than its factorization.

412681642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206340823.

The product of its digits is 18432, while the sum is 34.

The square root of 412681642 is about 20314.5672363454. The cubic root of 412681642 is about 744.5120249351.

The spelling of 412681642 in words is "four hundred twelve million, six hundred eighty-one thousand, six hundred forty-two".