1090823838 has 32 divisors (see below), whose sum is σ = 2387992992. Its totient is φ = 330134400.

The previous prime is 1090823821. The next prime is 1090823897. The reversal of 1090823838 is 8383280901.

It is a self number, because there is not a number n which added to its sum of digits gives 1090823838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109873 + ... + 119388.

It is an arithmetic number, because the mean of its divisors is an integer number (74624781).

Almost surely, 2^1090823838 is an apocalyptic number.

1090823838 is an abundant number, since it is smaller than the sum of its proper divisors (1297169154).

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

1090823838 is a wasteful number, since it uses less digits than its factorization.

1090823838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229340.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 1090823838 is about 33027.6223485736. The cubic root of 1090823838 is about 1029.4016816039.

The spelling of 1090823838 in words is "one billion, ninety million, eight hundred twenty-three thousand, eight hundred thirty-eight".