405411144 has 16 divisors (see below), whose sum is σ = 1013527920. Its totient is φ = 135137040.

The previous prime is 405411137. The next prime is 405411187. The reversal of 405411144 is 441114504.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 16892131 = 405411144 / (4 + 0 + 5 + 4 + 1 + 1 + 1 + 4 + 4).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8446042 + ... + 8446089.

It is an arithmetic number, because the mean of its divisors is an integer number (63345495).

Almost surely, 2^405411144 is an apocalyptic number.

It is an amenable number.

405411144 is an abundant number, since it is smaller than the sum of its proper divisors (608116776).

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

405411144 is a wasteful number, since it uses less digits than its factorization.

405411144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16892140 (or 16892136 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 405411144 is about 20134.8241611393. The cubic root of 405411144 is about 740.1139001692.

Adding to 405411144 its reverse (441114504), we get a palindrome (846525648).

The spelling of 405411144 in words is "four hundred five million, four hundred eleven thousand, one hundred forty-four".