404102140 has 24 divisors (see below), whose sum is σ = 913893120. Its totient is φ = 149206848.

The previous prime is 404102137. The next prime is 404102161. The reversal of 404102140 is 41201404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776860 + ... + 777379.

It is an arithmetic number, because the mean of its divisors is an integer number (38078880).

Almost surely, 2^404102140 is an apocalyptic number.

It is an amenable number.

404102140 is an abundant number, since it is smaller than the sum of its proper divisors (509790980).

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

404102140 is a wasteful number, since it uses less digits than its factorization.

404102140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554261 (or 1554259 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 404102140 is about 20102.2919091331. The cubic root of 404102140 is about 739.3164737749.

Adding to 404102140 its reverse (41201404), we get a palindrome (445303544).

The spelling of 404102140 in words is "four hundred four million, one hundred two thousand, one hundred forty".