42302040 has 128 divisors (see below), whose sum is σ = 140659200. Its totient is φ = 10091520.

The previous prime is 42301969. The next prime is 42302077. The reversal of 42302040 is 4020324.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96141 + ... + 96579.

It is an arithmetic number, because the mean of its divisors is an integer number (1098900).

Almost surely, 2^42302040 is an apocalyptic number.

42302040 is a gapful number since it is divisible by the number (40) 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 42302040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70329600).

42302040 is an abundant number, since it is smaller than the sum of its proper divisors (98357160).

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

42302040 is a wasteful number, since it uses less digits than its factorization.

42302040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 42302040 is about 6504.0018450182. The cubic root of 42302040 is about 348.4339282480.

Adding to 42302040 its reverse (4020324), we get a palindrome (46322364).

The spelling of 42302040 in words is "forty-two million, three hundred two thousand, forty".