43642246 has 4 divisors (see below), whose sum is σ = 65463372. Its totient is φ = 21821122.

The previous prime is 43642243. The next prime is 43642253. The reversal of 43642246 is 64224634.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43642243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10910560 + ... + 10910563.

It is an arithmetic number, because the mean of its divisors is an integer number (16365843).

Almost surely, 2^43642246 is an apocalyptic number.

43642246 is a deficient number, since it is larger than the sum of its proper divisors (21821126).

43642246 is a wasteful number, since it uses less digits than its factorization.

43642246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21821125.

The product of its digits is 27648, while the sum is 31.

The square root of 43642246 is about 6606.2278192627. The cubic root of 43642246 is about 352.0754132068.

The spelling of 43642246 in words is "forty-three million, six hundred forty-two thousand, two hundred forty-six".