42707385 has 64 divisors (see below), whose sum is σ = 88872960. Its totient is φ = 19051200.

The previous prime is 42707377. The next prime is 42707437. The reversal of 42707385 is 58370724.

42707385 is a `hidden beast` number, since 4 + 270 + 7 + 385 = 666.

It is not a de Polignac number, because 42707385 - 2³ = 42707377 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40110 + ... + 41160.

It is an arithmetic number, because the mean of its divisors is an integer number (1388640).

Almost surely, 2^42707385 is an apocalyptic number.

42707385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42707385 is an abundant number, since it is smaller than the sum of its proper divisors (46165575).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42707385 is a wasteful number, since it uses less digits than its factorization.

42707385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1109 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 42707385 is about 6535.0887522665. The cubic root of 42707385 is about 349.5433091166.

The spelling of 42707385 in words is "forty-two million, seven hundred seven thousand, three hundred eighty-five".