1042771968 has 260 divisors, whose sum is σ = 3567999600. Its totient is φ = 297271296.

The previous prime is 1042771967. The next prime is 1042771969. The reversal of 1042771968 is 8691772401.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1042771967) and next prime (1042771969).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042771963) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2322208 + ... + 2322656.

Almost surely, 2^1042771968 is an apocalyptic number.

1042771968 is a gapful number since it is divisible by the number (18) 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 1042771968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1783999800).

1042771968 is an abundant number, since it is smaller than the sum of its proper divisors (2525227632).

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

1042771968 is an frugal number, since it uses more digits than its factorization.

1042771968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 1042771968 is about 32291.9799331041. The cubic root of 1042771968 is about 1014.0587480405.

The spelling of 1042771968 in words is "one billion, forty-two million, seven hundred seventy-one thousand, nine hundred sixty-eight".