1045991676 has 24 divisors (see below), whose sum is σ = 2486698704. Its totient is φ = 342085120.

The previous prime is 1045991671. The next prime is 1045991689. The reversal of 1045991676 is 6761995401.

It is a happy number.

It is a super-2 number, since 2×1045991676² = 2188197172522577952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045991671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 821685 + ... + 822956.

It is an arithmetic number, because the mean of its divisors is an integer number (103612446).

Almost surely, 2^1045991676 is an apocalyptic number.

It is an amenable number.

1045991676 is an abundant number, since it is smaller than the sum of its proper divisors (1440707028).

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

1045991676 is a wasteful number, since it uses less digits than its factorization.

1045991676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644701 (or 1644699 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 48.

The square root of 1045991676 is about 32341.7945698751. The cubic root of 1045991676 is about 1015.1013596432.

The spelling of 1045991676 in words is "one billion, forty-five million, nine hundred ninety-one thousand, six hundred seventy-six".