1934211220 has 24 divisors (see below), whose sum is σ = 4238446464. Its totient is φ = 740045856.

The previous prime is 1934211211. The next prime is 1934211221. The reversal of 1934211220 is 221124391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1934211221) 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, 2101944 + ... + 2102863.

It is an arithmetic number, because the mean of its divisors is an integer number (176601936).

Almost surely, 2^1934211220 is an apocalyptic number.

1934211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1934211220 is an abundant number, since it is smaller than the sum of its proper divisors (2304235244).

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

1934211220 is a wasteful number, since it uses less digits than its factorization.

1934211220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204839 (or 4204837 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1934211220 is about 43979.6682570481. The cubic root of 1934211220 is about 1245.9519651489.

The spelling of 1934211220 in words is "one billion, nine hundred thirty-four million, two hundred eleven thousand, two hundred twenty".