42772349 has 4 divisors (see below), whose sum is σ = 42996480. Its totient is φ = 42548220.

The previous prime is 42772339. The next prime is 42772351. The reversal of 42772349 is 94327724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42772349 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42772309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111779 + ... + 112160.

It is an arithmetic number, because the mean of its divisors is an integer number (10749120).

Almost surely, 2^42772349 is an apocalyptic number.

It is an amenable number.

42772349 is a deficient number, since it is larger than the sum of its proper divisors (224131).

42772349 is a wasteful number, since it uses less digits than its factorization.

42772349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224130.

The product of its digits is 84672, while the sum is 38.

The square root of 42772349 is about 6540.0572627463. The cubic root of 42772349 is about 349.7204543368.

The spelling of 42772349 in words is "forty-two million, seven hundred seventy-two thousand, three hundred forty-nine".