1942019420 has 48 divisors (see below), whose sum is σ = 4454061696. Its totient is φ = 705384000.

The previous prime is 1942019399. The next prime is 1942019473. The reversal of 1942019420 is 249102491.

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 15 ways as a sum of consecutive naturals, for example, 209075 + ... + 218165.

It is an arithmetic number, because the mean of its divisors is an integer number (92792952).

Almost surely, 2^1942019420 is an apocalyptic number.

1942019420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1942019420 is an abundant number, since it is smaller than the sum of its proper divisors (2512042276).

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

1942019420 is a wasteful number, since it uses less digits than its factorization.

1942019420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082 (or 10080 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1942019420 is about 44068.3494131559. The cubic root of 1942019420 is about 1247.6263049105.

The spelling of 1942019420 in words is "one billion, nine hundred forty-two million, nineteen thousand, four hundred twenty".