1293948220 has 48 divisors (see below), whose sum is σ = 2778088320. Its totient is φ = 506113344.

The previous prime is 1293948209. The next prime is 1293948221. The reversal of 1293948220 is 228493921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293948221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182787 + ... + 189733.

It is an arithmetic number, because the mean of its divisors is an integer number (57876840).

Almost surely, 2^1293948220 is an apocalyptic number.

1293948220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1293948220 is an abundant number, since it is smaller than the sum of its proper divisors (1484140100).

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

1293948220 is a wasteful number, since it uses less digits than its factorization.

1293948220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7162 (or 7160 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 1293948220 is about 35971.4917677874. The cubic root of 1293948220 is about 1089.6966919737.

The spelling of 1293948220 in words is "one billion, two hundred ninety-three million, nine hundred forty-eight thousand, two hundred twenty".