1051238844 has 96 divisors (see below), whose sum is σ = 2789740800. Its totient is φ = 342239040.

The previous prime is 1051238833. The next prime is 1051238849. The reversal of 1051238844 is 4488321501.

It is a super-2 number, since 2×1051238844² = 2210206214268912672, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1051238799 and 1051238808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051238849) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 947362 + ... + 948470.

It is an arithmetic number, because the mean of its divisors is an integer number (29059800).

Almost surely, 2^1051238844 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 1051238844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394870400).

1051238844 is an abundant number, since it is smaller than the sum of its proper divisors (1738501956).

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

1051238844 is a wasteful number, since it uses less digits than its factorization.

1051238844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320 (or 1312 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 36.

The square root of 1051238844 is about 32422.8136348467. The cubic root of 1051238844 is about 1016.7959319408.

The spelling of 1051238844 in words is "one billion, fifty-one million, two hundred thirty-eight thousand, eight hundred forty-four".