42328786 has 16 divisors (see below), whose sum is σ = 66458304. Its totient is φ = 20181744.

The previous prime is 42328771. The next prime is 42328787. The reversal of 42328786 is 68782324.

It is a super-2 number, since 2×42328786² = 3583452248467592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42328787) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15925 + ... + 18391.

It is an arithmetic number, because the mean of its divisors is an integer number (4153644).

Almost surely, 2^42328786 is an apocalyptic number.

42328786 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

42328786 is a deficient number, since it is larger than the sum of its proper divisors (24129518).

42328786 is a wasteful number, since it uses less digits than its factorization.

42328786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865.

The product of its digits is 129024, while the sum is 40.

The square root of 42328786 is about 6506.0576388470. The cubic root of 42328786 is about 348.5073466968.

The spelling of 42328786 in words is "forty-two million, three hundred twenty-eight thousand, seven hundred eighty-six".