999950140 has 24 divisors (see below), whose sum is σ = 2399880672. Its totient is φ = 342840000.

The previous prime is 999950129. The next prime is 999950141. The reversal of 999950140 is 41059999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999950141) 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, 3571111 + ... + 3571390.

It is an arithmetic number, because the mean of its divisors is an integer number (99995028).

Almost surely, 2^999950140 is an apocalyptic number.

It is an amenable number.

999950140 is an abundant number, since it is smaller than the sum of its proper divisors (1399930532).

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

999950140 is a wasteful number, since it uses less digits than its factorization.

999950140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7142517 (or 7142515 counting only the distinct ones).

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 999950140 is about 31621.9882360360. The cubic root of 999950140 is about 999.9833797238.

The spelling of 999950140 in words is "nine hundred ninety-nine million, nine hundred fifty thousand, one hundred forty".