42402004240 has 40 divisors (see below), whose sum is σ = 98593564608. Its totient is φ = 16959269760.

The previous prime is 42402004237. The next prime is 42402004279. The reversal of 42402004240 is 4240020424.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1375395 + ... + 1405885.

Almost surely, 2^42402004240 is an apocalyptic number.

42402004240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42402004240 is an abundant number, since it is smaller than the sum of its proper divisors (56191560368).

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

42402004240 is a wasteful number, since it uses less digits than its factorization.

42402004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47887 (or 47881 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 42402004240 its reverse (4240020424), we get a palindrome (46642024664).

The spelling of 42402004240 in words is "forty-two billion, four hundred two million, four thousand, two hundred forty".