1071049942 has 4 divisors (see below), whose sum is σ = 1606574916. Its totient is φ = 535524970.

The previous prime is 1071049937. The next prime is 1071049949. The reversal of 1071049942 is 2499401701.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2499401701 = 67 ⋅37304503.

It is a super-2 number, since 2×1071049942² = 2294295956516406728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071049949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 267762484 + ... + 267762487.

It is an arithmetic number, because the mean of its divisors is an integer number (401643729).

Almost surely, 2^1071049942 is an apocalyptic number.

1071049942 is a deficient number, since it is larger than the sum of its proper divisors (535524974).

1071049942 is an equidigital number, since it uses as much as digits as its factorization.

1071049942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535524973.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1071049942 is about 32726.8993642844. The cubic root of 1071049942 is about 1023.1435576554.

The spelling of 1071049942 in words is "one billion, seventy-one million, forty-nine thousand, nine hundred forty-two".