1042894405 has 64 divisors (see below), whose sum is σ = 1563033600. Its totient is φ = 653590080.

The previous prime is 1042894397. The next prime is 1042894417. The reversal of 1042894405 is 5044982401.

1042894405 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1042894405 - 2³ = 1042894397 is a prime.

It is a hoax number, since the sum of its digits (37) 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13201156 + ... + 13201234.

It is an arithmetic number, because the mean of its divisors is an integer number (24422400).

Almost surely, 2^1042894405 is an apocalyptic number.

It is an amenable number.

1042894405 is a deficient number, since it is larger than the sum of its proper divisors (520139195).

1042894405 is an frugal number, since it uses more digits than its factorization.

1042894405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 1042894405 is about 32293.8756577776. The cubic root of 1042894405 is about 1014.0984350337.

The spelling of 1042894405 in words is "one billion, forty-two million, eight hundred ninety-four thousand, four hundred five".