1005919942 has 4 divisors (see below), whose sum is σ = 1508879916. Its totient is φ = 502959970.

The previous prime is 1005919921. The next prime is 1005919987. The reversal of 1005919942 is 2499195001.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×1005919942³ (a number of 28 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1005919895 and 1005919904.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251479984 + ... + 251479987.

It is an arithmetic number, because the mean of its divisors is an integer number (377219979).

Almost surely, 2^1005919942 is an apocalyptic number.

1005919942 is a deficient number, since it is larger than the sum of its proper divisors (502959974).

1005919942 is an equidigital number, since it uses as much as digits as its factorization.

1005919942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502959973.

The product of its (nonzero) digits is 29160, while the sum is 40.

The square root of 1005919942 is about 31716.2409815539. The cubic root of 1005919942 is about 1001.9694327882.

The spelling of 1005919942 in words is "one billion, five million, nine hundred nineteen thousand, nine hundred forty-two".