1949730420 has 48 divisors (see below), whose sum is σ = 5955542208. Its totient is φ = 472661760.

The previous prime is 1949730397. The next prime is 1949730421. The reversal of 1949730420 is 240379491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1949730421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1476409 + ... + 1477728.

It is an arithmetic number, because the mean of its divisors is an integer number (124073796).

Almost surely, 2^1949730420 is an apocalyptic number.

1949730420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1949730420 is an abundant number, since it is smaller than the sum of its proper divisors (4005811788).

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

1949730420 is a wasteful number, since it uses less digits than its factorization.

1949730420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2954160 (or 2954158 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 1949730420 is about 44155.7518337079. The cubic root of 1949730420 is about 1249.2754029818.

The spelling of 1949730420 in words is "one billion, nine hundred forty-nine million, seven hundred thirty thousand, four hundred twenty".