42423480 has 128 divisors (see below), whose sum is σ = 154310400. Its totient is φ = 10281600.

The previous prime is 42423473. The next prime is 42423481. The reversal of 42423480 is 8432424.

It is a happy number.

42423480 is a `hidden beast` number, since 424 + 234 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42423481) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10095 + ... + 13665.

It is an arithmetic number, because the mean of its divisors is an integer number (1205550).

Almost surely, 2^42423480 is an apocalyptic number.

42423480 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 42423480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77155200).

42423480 is an abundant number, since it is smaller than the sum of its proper divisors (111886920).

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

42423480 is a wasteful number, since it uses less digits than its factorization.

42423480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3602 (or 3592 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 42423480 is about 6513.3309450695. The cubic root of 42423480 is about 348.7670358195.

The spelling of 42423480 in words is "forty-two million, four hundred twenty-three thousand, four hundred eighty".