1249054008 has 64 divisors (see below), whose sum is σ = 3264157440. Its totient is φ = 397545984.

The previous prime is 1249054007. The next prime is 1249054033. The reversal of 1249054008 is 8004509421.

It is a self number, because there is not a number n which added to its sum of digits gives 1249054008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249054007) 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, 375360 + ... + 378672.

It is an arithmetic number, because the mean of its divisors is an integer number (51002460).

Almost surely, 2^1249054008 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 1249054008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1632078720).

1249054008 is an abundant number, since it is smaller than the sum of its proper divisors (2015103432).

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

1249054008 is a wasteful number, since it uses less digits than its factorization.

1249054008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028 (or 4024 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1249054008 is about 35341.9581800443. The cubic root of 1249054008 is about 1076.9455327050.

The spelling of 1249054008 in words is "one billion, two hundred forty-nine million, fifty-four thousand, eight".