42332664 has 64 divisors (see below), whose sum is σ = 118298880. Its totient is φ = 12512000.

The previous prime is 42332659. The next prime is 42332671. The reversal of 42332664 is 46623324.

It is a happy number.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8869 + ... + 12779.

It is an arithmetic number, because the mean of its divisors is an integer number (1848420).

Almost surely, 2^42332664 is an apocalyptic number.

42332664 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42332664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59149440).

42332664 is an abundant number, since it is smaller than the sum of its proper divisors (75966216).

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

42332664 is a wasteful number, since it uses less digits than its factorization.

42332664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3972 (or 3968 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

The square root of 42332664 is about 6506.3556619662. The cubic root of 42332664 is about 348.5179893378.

Adding to 42332664 its reverse (46623324), we get a palindrome (88955988).

The spelling of 42332664 in words is "forty-two million, three hundred thirty-two thousand, six hundred sixty-four".