1269948888 has 128 divisors (see below), whose sum is σ = 3810340800. Its totient is φ = 389587968.

The previous prime is 1269948853. The next prime is 1269948893. The reversal of 1269948888 is 8888499621.

1269948888 is a `hidden beast` number, since 12 + 69 + 9 + 488 + 88 = 666.

1269948888 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1269948888² = 3225540356264873088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

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, 1732170 + ... + 1732902.

Almost surely, 2^1269948888 is an apocalyptic number.

1269948888 is a gapful number since it is divisible by the number (18) 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 1269948888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905170400).

1269948888 is an abundant number, since it is smaller than the sum of its proper divisors (2540391912).

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

1269948888 is a wasteful number, since it uses less digits than its factorization.

1269948888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378 (or 1368 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The square root of 1269948888 is about 35636.3422365427. The cubic root of 1269948888 is about 1082.9176048609.

The spelling of 1269948888 in words is "one billion, two hundred sixty-nine million, nine hundred forty-eight thousand, eight hundred eighty-eight".