1071685900 has 36 divisors (see below), whose sum is σ = 2329647768. Its totient is φ = 427920640.

The previous prime is 1071685877. The next prime is 1071685907. The reversal of 1071685900 is 95861701.

It is a super-3 number, since 3×1071685900³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 1071685900.

It is not an unprimeable number, because it can be changed into a prime (1071685907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49572 + ... + 67828.

It is an arithmetic number, because the mean of its divisors is an integer number (64712438).

Almost surely, 2^1071685900 is an apocalyptic number.

1071685900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1071685900 is an abundant number, since it is smaller than the sum of its proper divisors (1257961868).

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

1071685900 is a wasteful number, since it uses less digits than its factorization.

1071685900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18858 (or 18851 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 1071685900 is about 32736.6140582682. The cubic root of 1071685900 is about 1023.3460217869.

The spelling of 1071685900 in words is "one billion, seventy-one million, six hundred eighty-five thousand, nine hundred".