4000400112 has 40 divisors (see below), whose sum is σ = 10554253056. Its totient is φ = 1305094336.

The previous prime is 4000400093. The next prime is 4000400113. The reversal of 4000400112 is 2110040004.

4000400112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×4000400112² = 32006402112179225088, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4000400113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 884358 + ... + 888869.

Almost surely, 2^4000400112 is an apocalyptic number.

It is an amenable number.

4000400112 is an abundant number, since it is smaller than the sum of its proper divisors (6553852944).

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

4000400112 is a wasteful number, since it uses less digits than its factorization.

4000400112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1773285 (or 1773279 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 4000400112 is about 63248.7162873682. The cubic root of 4000400112 is about 1587.4539783877.

Adding to 4000400112 its reverse (2110040004), we get a palindrome (6110440116).

The spelling of 4000400112 in words is "four billion, four hundred thousand, one hundred twelve".