1268473340 has 96 divisors (see below), whose sum is σ = 2845402560. Its totient is φ = 474163200.

The previous prime is 1268473319. The next prime is 1268473351. The reversal of 1268473340 is 433748621.

It is a super-2 number, since 2×1268473340² = 3218049228581511200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268473294 and 1268473303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4514000 + ... + 4514280.

It is an arithmetic number, because the mean of its divisors is an integer number (29639610).

Almost surely, 2^1268473340 is an apocalyptic number.

1268473340 is a gapful number since it is divisible by the number (10) 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 1268473340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1422701280).

1268473340 is an abundant number, since it is smaller than the sum of its proper divisors (1576929220).

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

1268473340 is a wasteful number, since it uses less digits than its factorization.

1268473340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1268473340 is about 35615.6333651390. The cubic root of 1268473340 is about 1082.4980299253.

The spelling of 1268473340 in words is "one billion, two hundred sixty-eight million, four hundred seventy-three thousand, three hundred forty".