1391953468 has 48 divisors (see below), whose sum is σ = 2618844480. Its totient is φ = 646886592.

The previous prime is 1391953463. The next prime is 1391953481. The reversal of 1391953468 is 8643591931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1391953463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1800330 + ... + 1801102.

It is an arithmetic number, because the mean of its divisors is an integer number (54559260).

Almost surely, 2^1391953468 is an apocalyptic number.

It is an amenable number.

1391953468 is a deficient number, since it is larger than the sum of its proper divisors (1226891012).

1391953468 is an equidigital number, since it uses as much as digits as its factorization.

1391953468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 883 (or 835 counting only the distinct ones).

The product of its digits is 699840, while the sum is 49.

The square root of 1391953468 is about 37308.8926128879. The cubic root of 1391953468 is about 1116.5415927437.

The spelling of 1391953468 in words is "one billion, three hundred ninety-one million, nine hundred fifty-three thousand, four hundred sixty-eight".