42385432 has 32 divisors (see below), whose sum is σ = 82465920. Its totient is φ = 20401920.

The previous prime is 42385429. The next prime is 42385439. The reversal of 42385432 is 23458324.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 42385394 and 42385403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42385439) 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, 68388 + ... + 69004.

It is an arithmetic number, because the mean of its divisors is an integer number (2577060).

Almost surely, 2^42385432 is an apocalyptic number.

It is an amenable number.

42385432 is a deficient number, since it is larger than the sum of its proper divisors (40080488).

42385432 is a wasteful number, since it uses less digits than its factorization.

42385432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931 (or 927 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 42385432 is about 6510.4095109294. The cubic root of 42385432 is about 348.6627393525.

The spelling of 42385432 in words is "forty-two million, three hundred eighty-five thousand, four hundred thirty-two".