42455743 has 8 divisors (see below), whose sum is σ = 46650240. Its totient is φ = 38317080.

The previous prime is 42455741. The next prime is 42455789. The reversal of 42455743 is 34755424.

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

It is a cyclic number.

It is not a de Polignac number, because 42455743 - 2¹ = 42455741 is a prime.

It is a super-2 number, since 2×42455743² = 3604980227364098, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42455699 and 42455708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42455741) 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, 12355 + ... + 15412.

It is an arithmetic number, because the mean of its divisors is an integer number (5831280).

Almost surely, 2^42455743 is an apocalyptic number.

42455743 is a deficient number, since it is larger than the sum of its proper divisors (4194497).

42455743 is a wasteful number, since it uses less digits than its factorization.

42455743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27917.

The product of its digits is 67200, while the sum is 34.

The square root of 42455743 is about 6515.8071641202. The cubic root of 42455743 is about 348.8554257051.

The spelling of 42455743 in words is "forty-two million, four hundred fifty-five thousand, seven hundred forty-three".