42301640 has 16 divisors (see below), whose sum is σ = 95178780. Its totient is φ = 16920640.

The previous prime is 42301631. The next prime is 42301673. The reversal of 42301640 is 4610324.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41190724 + 1110916 = 6418^2 + 1054^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528731 + ... + 528810.

Almost surely, 2^42301640 is an apocalyptic number.

42301640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42301640 is an abundant number, since it is smaller than the sum of its proper divisors (52877140).

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

42301640 is a wasteful number, since it uses less digits than its factorization.

42301640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057552 (or 1057548 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 42301640 is about 6503.9710946467. The cubic root of 42301640 is about 348.4328300030.

Adding to 42301640 its reverse (4610324), we get a palindrome (46911964).

The spelling of 42301640 in words is "forty-two million, three hundred one thousand, six hundred forty".