42303720 has 64 divisors (see below), whose sum is σ = 127552320. Its totient is φ = 11224064.

The previous prime is 42303673. The next prime is 42303727. The reversal of 42303720 is 2730324.

It is a happy number.

It is a super-3 number, since 3×42303720³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (42303727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26464 + ... + 28016.

It is an arithmetic number, because the mean of its divisors is an integer number (1993005).

Almost surely, 2^42303720 is an apocalyptic number.

42303720 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 42303720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63776160).

42303720 is an abundant number, since it is smaller than the sum of its proper divisors (85248600).

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

42303720 is a wasteful number, since it uses less digits than its factorization.

42303720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1794 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 42303720 is about 6504.1309949908. The cubic root of 42303720 is about 348.4385408014.

The spelling of 42303720 in words is "forty-two million, three hundred three thousand, seven hundred twenty".