1091042424 has 48 divisors (see below), whose sum is σ = 2970414720. Its totient is φ = 361772160.

The previous prime is 1091042419. The next prime is 1091042429. The reversal of 1091042424 is 4242401901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1091042419) and next prime (1091042429).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1091042429) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25917 + ... + 53420.

It is an arithmetic number, because the mean of its divisors is an integer number (61883640).

Almost surely, 2^1091042424 is an apocalyptic number.

It is an amenable number.

1091042424 is an abundant number, since it is smaller than the sum of its proper divisors (1879372296).

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

1091042424 is a wasteful number, since it uses less digits than its factorization.

1091042424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79540 (or 79533 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1091042424 is about 33030.9313220200. The cubic root of 1091042424 is about 1029.4704362950.

The spelling of 1091042424 in words is "one billion, ninety-one million, forty-two thousand, four hundred twenty-four".