1085744838 has 16 divisors (see below), whose sum is σ = 2217692160. Its totient is φ = 354214536.

The previous prime is 1085744827. The next prime is 1085744839. The reversal of 1085744838 is 8384475801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085744839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1924798 + ... + 1925361.

It is an arithmetic number, because the mean of its divisors is an integer number (138605760).

Almost surely, 2^1085744838 is an apocalyptic number.

1085744838 is an abundant number, since it is smaller than the sum of its proper divisors (1131947322).

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

1085744838 is a wasteful number, since it uses less digits than its factorization.

1085744838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3850211.

The product of its (nonzero) digits is 860160, while the sum is 48.

The square root of 1085744838 is about 32950.6424520069. The cubic root of 1085744838 is about 1027.8015250426.

The spelling of 1085744838 in words is "one billion, eighty-five million, seven hundred forty-four thousand, eight hundred thirty-eight".