1017881942 has 32 divisors (see below), whose sum is σ = 1906882560. Its totient is φ = 395887680.

The previous prime is 1017881923. The next prime is 1017881957. The reversal of 1017881942 is 2491887101.

It is a self number, because there is not a number n which added to its sum of digits gives 1017881942.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88034 + ... + 98922.

It is an arithmetic number, because the mean of its divisors is an integer number (59590080).

Almost surely, 2^1017881942 is an apocalyptic number.

1017881942 is a deficient number, since it is larger than the sum of its proper divisors (889000618).

1017881942 is a wasteful number, since it uses less digits than its factorization.

1017881942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516.

The product of its (nonzero) digits is 32256, while the sum is 41.

The square root of 1017881942 is about 31904.2621290636. The cubic root of 1017881942 is about 1005.9254668262.

The spelling of 1017881942 in words is "one billion, seventeen million, eight hundred eighty-one thousand, nine hundred forty-two".