2235947780 has 96 divisors (see below), whose sum is σ = 5516138880. Its totient is φ = 752199680.

The previous prime is 2235947767. The next prime is 2235947809. The reversal of 2235947780 is 877495322.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 215594 + ... + 225726.

It is an arithmetic number, because the mean of its divisors is an integer number (57459780).

Almost surely, 2^2235947780 is an apocalyptic number.

2235947780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2235947780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2758069440).

2235947780 is an abundant number, since it is smaller than the sum of its proper divisors (3280191100).

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

2235947780 is a wasteful number, since it uses less digits than its factorization.

2235947780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10229 (or 10227 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 2235947780 is about 47285.8094992568. The cubic root of 2235947780 is about 1307.6370549506.

The spelling of 2235947780 in words is "two billion, two hundred thirty-five million, nine hundred forty-seven thousand, seven hundred eighty".