2311489420 has 24 divisors (see below), whose sum is σ = 5065177824. Its totient is φ = 884395776.

The previous prime is 2311489393. The next prime is 2311489423. The reversal of 2311489420 is 249841132.

It is not an unprimeable number, because it can be changed into a prime (2311489423) 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, 2512029 + ... + 2512948.

It is an arithmetic number, because the mean of its divisors is an integer number (211049076).

Almost surely, 2^2311489420 is an apocalyptic number.

2311489420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2311489420 is an abundant number, since it is smaller than the sum of its proper divisors (2753688404).

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

2311489420 is a wasteful number, since it uses less digits than its factorization.

2311489420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5025009 (or 5025007 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 2311489420 is about 48077.9514954620. The cubic root of 2311489420 is about 1322.2004581729.

The spelling of 2311489420 in words is "two billion, three hundred eleven million, four hundred eighty-nine thousand, four hundred twenty".