1293042750 has 64 divisors (see below), whose sum is σ = 3367802880. Its totient is φ = 329815200.

The previous prime is 1293042743. The next prime is 1293042781. The reversal of 1293042750 is 572403921.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 20230 + ... + 54729.

It is an arithmetic number, because the mean of its divisors is an integer number (52621920).

Almost surely, 2^1293042750 is an apocalyptic number.

1293042750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1293042750 is an abundant number, since it is smaller than the sum of its proper divisors (2074760130).

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

1293042750 is a wasteful number, since it uses less digits than its factorization.

1293042750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75002 (or 74992 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 1293042750 is about 35958.9036262231. The cubic root of 1293042750 is about 1089.4424525612.

The spelling of 1293042750 in words is "one billion, two hundred ninety-three million, forty-two thousand, seven hundred fifty".