42040132800 has 84 divisors (see below), whose sum is σ = 137926684776. Its totient is φ = 11210700800.

The previous prime is 42040132789. The next prime is 42040132829. The reversal of 42040132800 is 823104024.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4374381 + ... + 4383980.

Almost surely, 2^42040132800 is an apocalyptic number.

42040132800 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42040132800 is an abundant number, since it is smaller than the sum of its proper divisors (95886551976).

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

42040132800 is a wasteful number, since it uses less digits than its factorization.

42040132800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8758386 (or 8758371 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 42040132800 its reverse (823104024), we get a palindrome (42863236824).

The spelling of 42040132800 in words is "forty-two billion, forty million, one hundred thirty-two thousand, eight hundred".