867401388 has 72 divisors (see below), whose sum is σ = 2513638400. Its totient is φ = 247056480.

The previous prime is 867401383. The next prime is 867401411. The reversal of 867401388 is 883104768.

It is not an unprimeable number, because it can be changed into a prime (867401383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78213 + ... + 88611.

Almost surely, 2^867401388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867401388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1256819200).

867401388 is an abundant number, since it is smaller than the sum of its proper divisors (1646237012).

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

867401388 is a wasteful number, since it uses less digits than its factorization.

867401388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10747 (or 10742 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 867401388 is about 29451.6788655588. The cubic root of 867401388 is about 953.6888480678.

The spelling of 867401388 in words is "eight hundred sixty-seven million, four hundred one thousand, three hundred eighty-eight".