400030112 has 24 divisors (see below), whose sum is σ = 806770692. Its totient is φ = 195136000.

The previous prime is 400030087. The next prime is 400030129. The reversal of 400030112 is 211030004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 399840016 + 190096 = 19996^2 + 436^2 .

It is a junction number, because it is equal to n+sod(n) for n = 400030093 and 400030102.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151139 + ... + 153762.

Almost surely, 2^400030112 is an apocalyptic number.

It is an amenable number.

400030112 is an abundant number, since it is smaller than the sum of its proper divisors (406740580).

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

400030112 is a wasteful number, since it uses less digits than its factorization.

400030112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304952 (or 304944 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 400030112 is about 20000.7527858328. The cubic root of 400030112 is about 736.8247881902.

Adding to 400030112 its reverse (211030004), we get a palindrome (611060116).

The spelling of 400030112 in words is "four hundred million, thirty thousand, one hundred twelve".