42772743 has 48 divisors (see below), whose sum is σ = 71285760. Its totient is φ = 24494400.

The previous prime is 42772739. The next prime is 42772747. The reversal of 42772743 is 34727724.

It is an interprime number because it is at equal distance from previous prime (42772739) and next prime (42772747).

It is not a de Polignac number, because 42772743 - 2² = 42772739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42772698 and 42772707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 157698 + ... + 157968.

It is an arithmetic number, because the mean of its divisors is an integer number (1485120).

Almost surely, 2^42772743 is an apocalyptic number.

42772743 is a deficient number, since it is larger than the sum of its proper divisors (28513017).

42772743 is a wasteful number, since it uses less digits than its factorization.

42772743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380 (or 377 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 42772743 is about 6540.0873847373. The cubic root of 42772743 is about 349.7215281570.

The spelling of 42772743 in words is "forty-two million, seven hundred seventy-two thousand, seven hundred forty-three".