1044135405 has 48 divisors (see below), whose sum is σ = 1908541440. Its totient is φ = 526608000.

The previous prime is 1044135383. The next prime is 1044135413. The reversal of 1044135405 is 5045314401.

It is a happy number.

1044135405 is a `hidden beast` number, since 104 + 4 + 13 + 540 + 5 = 666.

It is not a de Polignac number, because 1044135405 - 2⁶ = 1044135341 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 906580 + ... + 907730.

It is an arithmetic number, because the mean of its divisors is an integer number (39761280).

Almost surely, 2^1044135405 is an apocalyptic number.

1044135405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1044135405 is a deficient number, since it is larger than the sum of its proper divisors (864406035).

1044135405 is a wasteful number, since it uses less digits than its factorization.

1044135405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242 (or 2239 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1044135405 is about 32313.0841146431. The cubic root of 1044135405 is about 1014.5005202611.

Adding to 1044135405 its reverse (5045314401), we get a palindrome (6089449806).

The spelling of 1044135405 in words is "one billion, forty-four million, one hundred thirty-five thousand, four hundred five".