43742923 has 8 divisors (see below), whose sum is σ = 50178560. Its totient is φ = 37353960.

The previous prime is 43742903. The next prime is 43742929. The reversal of 43742923 is 32924734.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43742923 - 2¹³ = 43734731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43742929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9633 + ... + 13426.

It is an arithmetic number, because the mean of its divisors is an integer number (6272320).

Almost surely, 2^43742923 is an apocalyptic number.

43742923 is a deficient number, since it is larger than the sum of its proper divisors (6435637).

43742923 is a wasteful number, since it uses less digits than its factorization.

43742923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23337.

The product of its digits is 36288, while the sum is 34.

The square root of 43742923 is about 6613.8432851104. The cubic root of 43742923 is about 352.3459360613.

The spelling of 43742923 in words is "forty-three million, seven hundred forty-two thousand, nine hundred twenty-three".