1055240 has 64 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 380160.

The previous prime is 1055233. The next prime is 1055251. The reversal of 1055240 is 425501.

1055240 = T₁ + T₂ + ... + T₁₈₄.

1055240 is a nontrivial binomial coefficient, being equal to C(186, 3).

It is a super-2 number, since 2×1055240² = 2227062915200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is the 184-th tetrahedral number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28502 + ... + 28538.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2^1055240 is an apocalyptic number.

1055240 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 1055240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313280).

1055240 is an abundant number, since it is smaller than the sum of its proper divisors (1571320).

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

1055240 is a wasteful number, since it uses less digits than its factorization.

1055240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 1055240 is about 1027.2487527371. The cubic root of 1055240 is about 101.8084319282.

The spelling of 1055240 in words is "one million, fifty-five thousand, two hundred forty".