43246442 has 4 divisors (see below), whose sum is σ = 64869666. Its totient is φ = 21623220.

The previous prime is 43246429. The next prime is 43246447. The reversal of 43246442 is 24464234.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24464234 = 2 ⋅12232117.

It can be written as a sum of positive squares in only one way, i.e., 38576521 + 4669921 = 6211^2 + 2161^2 .

It is not an unprimeable number, because it can be changed into a prime (43246447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10811609 + ... + 10811612.

Almost surely, 2^43246442 is an apocalyptic number.

43246442 is a deficient number, since it is larger than the sum of its proper divisors (21623224).

43246442 is a wasteful number, since it uses less digits than its factorization.

43246442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21623223.

The product of its digits is 18432, while the sum is 29.

The square root of 43246442 is about 6576.2027036885. The cubic root of 43246442 is about 351.0078217319.

The spelling of 43246442 in words is "forty-three million, two hundred forty-six thousand, four hundred forty-two".