401678112 has 48 divisors (see below), whose sum is σ = 1150263072. Its totient is φ = 121720320.

The previous prime is 401678071. The next prime is 401678119. The reversal of 401678112 is 211876104.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×401678112² = 322690611319769088, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401678112.

It is not an unprimeable number, because it can be changed into a prime (401678119) 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, 189133 + ... + 191244.

It is an arithmetic number, because the mean of its divisors is an integer number (23963814).

Almost surely, 2^401678112 is an apocalyptic number.

It is an amenable number.

401678112 is an abundant number, since it is smaller than the sum of its proper divisors (748584960).

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

401678112 is a wasteful number, since it uses less digits than its factorization.

401678112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380401 (or 380393 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 401678112 is about 20041.9088911211. The cubic root of 401678112 is about 737.8352317584.

It can be divided in two parts, 4016 and 78112, that added together give a palindrome (82128).

The spelling of 401678112 in words is "four hundred one million, six hundred seventy-eight thousand, one hundred twelve".