42004340400 has 120 divisors (see below), whose sum is σ = 146786122944. Its totient is φ = 10182867200.

The previous prime is 42004340377. The next prime is 42004340419. The reversal of 42004340400 is 404340024.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×42004340400² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1577874 + ... + 1604273.

Almost surely, 2^42004340400 is an apocalyptic number.

42004340400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42004340400 is an abundant number, since it is smaller than the sum of its proper divisors (104781782544).

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

42004340400 is a wasteful number, since it uses less digits than its factorization.

42004340400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3182179 (or 3182168 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 21.

Adding to 42004340400 its reverse (404340024), we get a palindrome (42408680424).

The spelling of 42004340400 in words is "forty-two billion, four million, three hundred forty thousand, four hundred".