1039249656 has 64 divisors (see below), whose sum is σ = 2903040000. Its totient is φ = 344468448.

The previous prime is 1039249633. The next prime is 1039249693. The reversal of 1039249656 is 6569429301.

1039249656 is a `hidden beast` number, since 103 + 9 + 2 + 496 + 56 = 666.

It is a super-2 number, since 2×1039249656² = 2160079694992236672, 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 15 ways as a sum of consecutive naturals, for example, 25225 + ... + 52103.

It is an arithmetic number, because the mean of its divisors is an integer number (45360000).

Almost surely, 2^1039249656 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 1039249656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451520000).

1039249656 is an abundant number, since it is smaller than the sum of its proper divisors (1863790344).

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

1039249656 is a wasteful number, since it uses less digits than its factorization.

1039249656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27073 (or 27063 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 1039249656 is about 32237.3953042115. The cubic root of 1039249656 is about 1012.9156855569.

The spelling of 1039249656 in words is "one billion, thirty-nine million, two hundred forty-nine thousand, six hundred fifty-six".