1405424404 has 24 divisors (see below), whose sum is σ = 2523056256. Its totient is φ = 684600000.

The previous prime is 1405424389. The next prime is 1405424431. The reversal of 1405424404 is 4044245041.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 117459 + ... + 128869.

It is an arithmetic number, because the mean of its divisors is an integer number (105127344).

Almost surely, 2^1405424404 is an apocalyptic number.

It is an amenable number.

1405424404 is a deficient number, since it is larger than the sum of its proper divisors (1117631852).

1405424404 is a wasteful number, since it uses less digits than its factorization.

1405424404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12207 (or 12205 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 28.

The square root of 1405424404 is about 37488.9904371937. The cubic root of 1405424404 is about 1120.1318945436.

Adding to 1405424404 its reverse (4044245041), we get a palindrome (5449669445).

The spelling of 1405424404 in words is "one billion, four hundred five million, four hundred twenty-four thousand, four hundred four".