404020154230440 has 128 divisors (see below), whose sum is σ = 1400027058587520. Its totient is φ = 92182851584000.

The previous prime is 404020154230397. The next prime is 404020154230481. The reversal of 404020154230440 is 44032451020404.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9002209161 + ... + 9002254040.

It is an arithmetic number, because the mean of its divisors is an integer number (10937711395215).

Almost surely, 2^{404020154230440} is an apocalyptic number.

404020154230440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

404020154230440 is an abundant number, since it is smaller than the sum of its proper divisors (996006904357080).

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

404020154230440 is a wasteful number, since it uses less digits than its factorization.

404020154230440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18004463243 (or 18004463239 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 33.

The spelling of 404020154230440 in words is "four hundred four trillion, twenty billion, one hundred fifty-four million, two hundred thirty thousand, four hundred forty".