988405146 has 16 divisors (see below), whose sum is σ = 2196456000. Its totient is φ = 329468364.

The previous prime is 988405141. The next prime is 988405169. The reversal of 988405146 is 641504889.

988405146 is a `hidden beast` number, since 98 + 8 + 40 + 514 + 6 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (988405141) 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 7 ways as a sum of consecutive naturals, for example, 9151846 + ... + 9151953.

It is an arithmetic number, because the mean of its divisors is an integer number (137278500).

Almost surely, 2^988405146 is an apocalyptic number.

988405146 is an abundant number, since it is smaller than the sum of its proper divisors (1208050854).

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

988405146 is a wasteful number, since it uses less digits than its factorization.

988405146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18303810 (or 18303804 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The square root of 988405146 is about 31438.9113361134. The cubic root of 988405146 is about 996.1200138442.

The spelling of 988405146 in words is "nine hundred eighty-eight million, four hundred five thousand, one hundred forty-six".