1293668420 has 48 divisors (see below), whose sum is σ = 3026757888. Its totient is φ = 460412160.

The previous prime is 1293668417. The next prime is 1293668423. The reversal of 1293668420 is 248663921.

It is an interprime number because it is at equal distance from previous prime (1293668417) and next prime (1293668423).

It is not an unprimeable number, because it can be changed into a prime (1293668423) 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 15 ways as a sum of consecutive naturals, for example, 52217 + ... + 72896.

It is an arithmetic number, because the mean of its divisors is an integer number (63057456).

Almost surely, 2^1293668420 is an apocalyptic number.

1293668420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293668420 is an abundant number, since it is smaller than the sum of its proper divisors (1733089468).

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

1293668420 is a wasteful number, since it uses less digits than its factorization.

1293668420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125180 (or 125178 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 41.

The square root of 1293668420 is about 35967.6023665743. The cubic root of 1293668420 is about 1089.6181419181.

The spelling of 1293668420 in words is "one billion, two hundred ninety-three million, six hundred sixty-eight thousand, four hundred twenty".