1045691850 has 72 divisors (see below), whose sum is σ = 3016735488. Its totient is φ = 239013600.

The previous prime is 1045691833. The next prime is 1045691863. The reversal of 1045691850 is 581965401.

It is a junction number, because it is equal to n+sod(n) for n = 1045691799 and 1045691808.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 63786 + ... + 78485.

It is an arithmetic number, because the mean of its divisors is an integer number (41899104).

Almost surely, 2^1045691850 is an apocalyptic number.

1045691850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1045691850 is an abundant number, since it is smaller than the sum of its proper divisors (1971043638).

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

1045691850 is a wasteful number, since it uses less digits than its factorization.

1045691850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142300 (or 142288 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 1045691850 is about 32337.1589661182. The cubic root of 1045691850 is about 1015.0043598703.

The spelling of 1045691850 in words is "one billion, forty-five million, six hundred ninety-one thousand, eight hundred fifty".