1366783948 has 24 divisors (see below), whose sum is σ = 2407344128. Its totient is φ = 678984336.

The previous prime is 1366783937. The next prime is 1366783963. The reversal of 1366783948 is 8493876631.

It is a happy number.

It is an unprimeable number.

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, 572365 + ... + 574747.

Almost surely, 2^1366783948 is an apocalyptic number.

It is an amenable number.

1366783948 is a deficient number, since it is larger than the sum of its proper divisors (1040560180).

1366783948 is a wasteful number, since it uses less digits than its factorization.

1366783948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3253 (or 3251 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 55.

The square root of 1366783948 is about 36970.0412225899. The cubic root of 1366783948 is about 1109.7707905375.

The spelling of 1366783948 in words is "one billion, three hundred sixty-six million, seven hundred eighty-three thousand, nine hundred forty-eight".