1293722952 has 64 divisors (see below), whose sum is σ = 3379553280. Its totient is φ = 411926592.

The previous prime is 1293722887. The next prime is 1293723059. The reversal of 1293722952 is 2592273921.

It is a happy 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 15 ways as a sum of consecutive naturals, for example, 618853 + ... + 620939.

It is an arithmetic number, because the mean of its divisors is an integer number (52805520).

Almost surely, 2^1293722952 is an apocalyptic number.

1293722952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1293722952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1689776640).

1293722952 is an abundant number, since it is smaller than the sum of its proper divisors (2085830328).

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

1293722952 is a wasteful number, since it uses less digits than its factorization.

1293722952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3242 (or 3238 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 1293722952 is about 35968.3604296888. The cubic root of 1293722952 is about 1089.6334519261.

The spelling of 1293722952 in words is "one billion, two hundred ninety-three million, seven hundred twenty-two thousand, nine hundred fifty-two".