43257742 has 24 divisors (see below), whose sum is σ = 72997848. Its totient is φ = 19200720.

The previous prime is 43257727. The next prime is 43257749. The reversal of 43257742 is 24775234.

It is a junction number, because it is equal to n+sod(n) for n = 43257698 and 43257707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43257749) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8328 + ... + 12484.

It is an arithmetic number, because the mean of its divisors is an integer number (3041577).

Almost surely, 2^43257742 is an apocalyptic number.

43257742 is a deficient number, since it is larger than the sum of its proper divisors (29740106).

43257742 is a wasteful number, since it uses less digits than its factorization.

43257742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4224 (or 4213 counting only the distinct ones).

The product of its digits is 47040, while the sum is 34.

The square root of 43257742 is about 6577.0618060043. The cubic root of 43257742 is about 351.0383910519.

The spelling of 43257742 in words is "forty-three million, two hundred fifty-seven thousand, seven hundred forty-two".