1930211340 has 24 divisors (see below), whose sum is σ = 5404591920. Its totient is φ = 514723008.

The previous prime is 1930211317. The next prime is 1930211347. The reversal of 1930211340 is 431120391.

It is a self number, because there is not a number n which added to its sum of digits gives 1930211340.

It is not an unprimeable number, because it can be changed into a prime (1930211347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16085035 + ... + 16085154.

It is an arithmetic number, because the mean of its divisors is an integer number (225191330).

Almost surely, 2^1930211340 is an apocalyptic number.

1930211340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1930211340 is an abundant number, since it is smaller than the sum of its proper divisors (3474380580).

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

1930211340 is a wasteful number, since it uses less digits than its factorization.

1930211340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32170201 (or 32170199 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1930211340 is about 43934.1705281891. The cubic root of 1930211340 is about 1245.0925109883.

The spelling of 1930211340 in words is "one billion, nine hundred thirty million, two hundred eleven thousand, three hundred forty".