42743655 has 24 divisors (see below), whose sum is σ = 75200112. Its totient is φ = 22454784.

The previous prime is 42743641. The next prime is 42743663. The reversal of 42743655 is 55634724.

It is not a de Polignac number, because 42743655 - 2⁴ = 42743639 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4074 + ... + 10103.

It is an arithmetic number, because the mean of its divisors is an integer number (3133338).

Almost surely, 2^42743655 is an apocalyptic number.

42743655 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42743655 is a deficient number, since it is larger than the sum of its proper divisors (32456457).

42743655 is a wasteful number, since it uses less digits than its factorization.

42743655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14255 (or 14252 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 42743655 is about 6537.8631830285. The cubic root of 42743655 is about 349.6422330578.

The spelling of 42743655 in words is "forty-two million, seven hundred forty-three thousand, six hundred fifty-five".