6194992140 has 72 divisors (see below), whose sum is σ = 19299374640. Its totient is φ = 1607347584.

The previous prime is 6194992127. The next prime is 6194992147. The reversal of 6194992140 is 412994916.

6194992140 is a `hidden beast` number, since 6 + 19 + 499 + 2 + 140 = 666.

It is a super-2 number, since 2×6194992140² = 76755855229323559200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (6194992147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 458430 + ... + 471749.

It is an arithmetic number, because the mean of its divisors is an integer number (268046870).

Almost surely, 2^6194992140 is an apocalyptic number.

6194992140 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6194992140 is an abundant number, since it is smaller than the sum of its proper divisors (13104382500).

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

6194992140 is a wasteful number, since it uses less digits than its factorization.

6194992140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930231 (or 930226 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 6194992140 is about 78708.2723733662. The cubic root of 6194992140 is about 1836.5957989190.

The spelling of 6194992140 in words is "six billion, one hundred ninety-four million, nine hundred ninety-two thousand, one hundred forty".