1058640 has 80 divisors (see below), whose sum is σ = 3589056. Its totient is φ = 256000.

The previous prime is 1058639. The next prime is 1058653. The reversal of 1058640 is 468501.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×1058640² = 2241437299200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1058640.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2440 + ... + 2840.

2^1058640 is an apocalyptic number.

1058640 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 1058640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794528).

1058640 is an abundant number, since it is smaller than the sum of its proper divisors (2530416).

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

1058640 is a wasteful number, since it uses less digits than its factorization.

1058640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 1058640 is about 1028.9023277260. The cubic root of 1058640 is about 101.9176574968.

The spelling of 1058640 in words is "one million, fifty-eight thousand, six hundred forty".