1449521268 has 96 divisors (see below), whose sum is σ = 3782486400. Its totient is φ = 428972544.

The previous prime is 1449521233. The next prime is 1449521273. The reversal of 1449521268 is 8621259441.

It is a super-2 number, since 2×1449521268² = 4202223812768655648, which contains 22 as substring.

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, 1687023 + ... + 1687881.

It is an arithmetic number, because the mean of its divisors is an integer number (39400900).

Almost surely, 2^1449521268 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1449521268, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1891243200).

1449521268 is an abundant number, since it is smaller than the sum of its proper divisors (2332965132).

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

1449521268 is a wasteful number, since it uses less digits than its factorization.

1449521268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1281 (or 1279 counting only the distinct ones).

The product of its digits is 138240, while the sum is 42.

The square root of 1449521268 is about 38072.5789512610. The cubic root of 1449521268 is about 1131.7266182548.

The spelling of 1449521268 in words is "one billion, four hundred forty-nine million, five hundred twenty-one thousand, two hundred sixty-eight".