2019742420 has 48 divisors (see below), whose sum is σ = 4268880000. Its totient is φ = 802696320.

The previous prime is 2019742399. The next prime is 2019742433. The reversal of 2019742420 is 242479102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4047331 + ... + 4047829.

It is an arithmetic number, because the mean of its divisors is an integer number (88935000).

Almost surely, 2^2019742420 is an apocalyptic number.

2019742420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2019742420 is an abundant number, since it is smaller than the sum of its proper divisors (2249137580).

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

2019742420 is a wasteful number, since it uses less digits than its factorization.

2019742420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408 (or 1406 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 2019742420 is about 44941.5444772429. The cubic root of 2019742420 is about 1264.0531317796.

The spelling of 2019742420 in words is "two billion, nineteen million, seven hundred forty-two thousand, four hundred twenty".