42770943 has 16 divisors (see below), whose sum is σ = 64405600. Its totient is φ = 28045440.

The previous prime is 42770921. The next prime is 42770953. The reversal of 42770943 is 34907724.

It is not a de Polignac number, because 42770943 - 2⁶ = 42770879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42770898 and 42770907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42770953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11338 + ... + 14631.

It is an arithmetic number, because the mean of its divisors is an integer number (4025350).

Almost surely, 2^42770943 is an apocalyptic number.

42770943 is a deficient number, since it is larger than the sum of its proper divisors (21634657).

42770943 is a wasteful number, since it uses less digits than its factorization.

42770943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26039 (or 26033 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 42770943 is about 6539.9497704493. The cubic root of 42770943 is about 349.7166223257.

The spelling of 42770943 in words is "forty-two million, seven hundred seventy thousand, nine hundred forty-three".