42006015400 has 48 divisors (see below), whose sum is σ = 97881709500. Its totient is φ = 16764948480.

The previous prime is 42006015361. The next prime is 42006015407. The reversal of 42006015400 is 451060024.

42006015400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 15364594116 + 26641421284 = 123954^2 + 163222^2 .

It is not an unprimeable number, because it can be changed into a prime (42006015407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 144087 + ... + 323686.

Almost surely, 2^42006015400 is an apocalyptic number.

42006015400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42006015400 is an abundant number, since it is smaller than the sum of its proper divisors (55875694100).

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

42006015400 is a wasteful number, since it uses less digits than its factorization.

42006015400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468238 (or 468229 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 42006015400 its reverse (451060024), we get a palindrome (42457075424).

The spelling of 42006015400 in words is "forty-two billion, six million, fifteen thousand, four hundred".