1059387840 has 252 divisors, whose sum is σ = 4239332136. Its totient is φ = 242113536.

The previous prime is 1059387809. The next prime is 1059387841. The reversal of 1059387840 is 487839501.

1059387840 is a `hidden beast` number, since 10 + 593 + 8 + 7 + 8 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (252).

It is a super-2 number, since 2×1059387840² = 2244605191079731200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1059387841) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 137367 + ... + 144873.

Almost surely, 2^1059387840 is an apocalyptic number.

1059387840 is a gapful number since it is divisible by the number (10) 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 1059387840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2119666068).

1059387840 is an abundant number, since it is smaller than the sum of its proper divisors (3179944296).

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

1059387840 is a wasteful number, since it uses less digits than its factorization.

1059387840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544 (or 7524 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 1059387840 is about 32548.2386620229. The cubic root of 1059387840 is about 1019.4165059512.

The spelling of 1059387840 in words is "one billion, fifty-nine million, three hundred eighty-seven thousand, eight hundred forty".