42423450240 has 64 divisors (see below), whose sum is σ = 135224753760. Its totient is φ = 11312919552.

The previous prime is 42423450191. The next prime is 42423450257. The reversal of 42423450240 is 4205432424.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 42423450198 and 42423450207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11045854 + ... + 11049693.

Almost surely, 2^42423450240 is an apocalyptic number.

42423450240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42423450240 is an abundant number, since it is smaller than the sum of its proper divisors (92801303520).

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

42423450240 is a wasteful number, since it uses less digits than its factorization.

42423450240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22095569 (or 22095557 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 30.

Adding to 42423450240 its reverse (4205432424), we get a palindrome (46628882664).

It can be divided in two parts, 424234 and 50240, that added together give a palindrome (474474).

The spelling of 42423450240 in words is "forty-two billion, four hundred twenty-three million, four hundred fifty thousand, two hundred forty".