1234780844 has 12 divisors (see below), whose sum is σ = 2357308968. Its totient is φ = 561264000.

The previous prime is 1234780837. The next prime is 1234780847. The reversal of 1234780844 is 4480874321.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1234780847) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14031557 + ... + 14031644.

It is an arithmetic number, because the mean of its divisors is an integer number (196442414).

Almost surely, 2^1234780844 is an apocalyptic number.

It is an amenable number.

1234780844 is a deficient number, since it is larger than the sum of its proper divisors (1122528124).

1234780844 is a wasteful number, since it uses less digits than its factorization.

1234780844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28063216 (or 28063214 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 1234780844 is about 35139.4485443355. The cubic root of 1234780844 is about 1072.8276575432.

The spelling of 1234780844 in words is "one billion, two hundred thirty-four million, seven hundred eighty thousand, eight hundred forty-four".