1238946783 has 8 divisors (see below), whose sum is σ = 1679010096. Its totient is φ = 812424000.

The previous prime is 1238946767. The next prime is 1238946823. The reversal of 1238946783 is 3876498321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1238946783 - 2⁴ = 1238946767 is a prime.

It is a super-2 number, since 2×1238946783² = 3069978262212098178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1238946283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3384918 + ... + 3385283.

It is an arithmetic number, because the mean of its divisors is an integer number (209876262).

Almost surely, 2^1238946783 is an apocalyptic number.

1238946783 is a deficient number, since it is larger than the sum of its proper divisors (440063313).

1238946783 is an equidigital number, since it uses as much as digits as its factorization.

1238946783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770265.

The product of its digits is 1741824, while the sum is 51.

The square root of 1238946783 is about 35198.6758699812. The cubic root of 1238946783 is about 1074.0328154582.

The spelling of 1238946783 in words is "one billion, two hundred thirty-eight million, nine hundred forty-six thousand, seven hundred eighty-three".