2019517140 has 24 divisors (see below), whose sum is σ = 5654648160. Its totient is φ = 538537888.

The previous prime is 2019517133. The next prime is 2019517151. The reversal of 2019517140 is 417159102.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2019517098 and 2019517107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16829250 + ... + 16829369.

It is an arithmetic number, because the mean of its divisors is an integer number (235610340).

Almost surely, 2^2019517140 is an apocalyptic number.

2019517140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019517140 is an abundant number, since it is smaller than the sum of its proper divisors (3635131020).

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

2019517140 is a wasteful number, since it uses less digits than its factorization.

2019517140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33658631 (or 33658629 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 2019517140 is about 44939.0380404387. The cubic root of 2019517140 is about 1264.0061329684.

The spelling of 2019517140 in words is "two billion, nineteen million, five hundred seventeen thousand, one hundred forty".