1268202450 has 48 divisors (see below), whose sum is σ = 3163386816. Its totient is φ = 336225600.

The previous prime is 1268202449. The next prime is 1268202461. The reversal of 1268202450 is 542028621.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1515 + ... + 50385.

It is an arithmetic number, because the mean of its divisors is an integer number (65903892).

Almost surely, 2^1268202450 is an apocalyptic number.

1268202450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1268202450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1581693408).

1268202450 is an abundant number, since it is smaller than the sum of its proper divisors (1895184366).

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

1268202450 is a wasteful number, since it uses less digits than its factorization.

1268202450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49059 (or 49054 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 1268202450 is about 35611.8301972814. The cubic root of 1268202450 is about 1082.4209664825.

The spelling of 1268202450 in words is "one billion, two hundred sixty-eight million, two hundred two thousand, four hundred fifty".