404077140 has 96 divisors (see below), whose sum is σ = 1287861120. Its totient is φ = 105120000.

The previous prime is 404077109. The next prime is 404077147. The reversal of 404077140 is 41770404.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404077147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13015 + ... + 31265.

It is an arithmetic number, because the mean of its divisors is an integer number (13415220).

Almost surely, 2^404077140 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 404077140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (643930560).

404077140 is an abundant number, since it is smaller than the sum of its proper divisors (883783980).

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

404077140 is a wasteful number, since it uses less digits than its factorization.

404077140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18310 (or 18302 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 404077140 is about 20101.6700798715. The cubic root of 404077140 is about 739.3012273877.

The spelling of 404077140 in words is "four hundred four million, seventy-seven thousand, one hundred forty".