1293493900 has 18 divisors (see below), whose sum is σ = 2806881980. Its totient is φ = 517397520.

The previous prime is 1293493843. The next prime is 1293493919. The reversal of 1293493900 is 93943921.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 6467370 + ... + 6467569.

Almost surely, 2^1293493900 is an apocalyptic number.

1293493900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293493900 is an abundant number, since it is smaller than the sum of its proper divisors (1513388080).

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

1293493900 is a wasteful number, since it uses less digits than its factorization.

1293493900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12934953 (or 12934946 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 1293493900 is about 35965.1762125532. The cubic root of 1293493900 is about 1089.5691420593.

The spelling of 1293493900 in words is "one billion, two hundred ninety-three million, four hundred ninety-three thousand, nine hundred".