42772385 has 8 divisors (see below), whose sum is σ = 51696960. Its totient is φ = 33971184.

The previous prime is 42772381. The next prime is 42772399. The reversal of 42772385 is 58327724.

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 42772385 - 2² = 42772381 is a prime.

It is a super-3 number, since 3×42772385³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42772381) 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, 30077 + ... + 31466.

It is an arithmetic number, because the mean of its divisors is an integer number (6462120).

Almost surely, 2^42772385 is an apocalyptic number.

It is an amenable number.

42772385 is a deficient number, since it is larger than the sum of its proper divisors (8924575).

42772385 is a wasteful number, since it uses less digits than its factorization.

42772385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61687.

The product of its digits is 94080, while the sum is 38.

The square root of 42772385 is about 6540.0600150152. The cubic root of 42772385 is about 349.7205524526.

The spelling of 42772385 in words is "forty-two million, seven hundred seventy-two thousand, three hundred eighty-five".