1071491936 has 36 divisors (see below), whose sum is σ = 2179805796. Its totient is φ = 518448960.

The previous prime is 1071491893. The next prime is 1071491951. The reversal of 1071491936 is 6391941701.

It is a super-2 number, since 2×1071491936² = 2296189937826056192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1071491893 and 1071491902.

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 in 5 ways as a sum of consecutive naturals, for example, 13331 + ... + 48173.

It is an arithmetic number, because the mean of its divisors is an integer number (60550161).

Almost surely, 2^1071491936 is an apocalyptic number.

1071491936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1071491936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1089902898).

1071491936 is an abundant number, since it is smaller than the sum of its proper divisors (1108313860).

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

1071491936 is an equidigital number, since it uses as much as digits as its factorization.

1071491936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34915 (or 34876 counting only the distinct ones).

The product of its (nonzero) digits is 40824, while the sum is 41.

The square root of 1071491936 is about 32733.6514309052. The cubic root of 1071491936 is about 1023.2842797336.

The spelling of 1071491936 in words is "one billion, seventy-one million, four hundred ninety-one thousand, nine hundred thirty-six".