1055940 has 24 divisors (see below), whose sum is σ = 2956800. Its totient is φ = 281568.

The previous prime is 1055939. The next prime is 1055947. The reversal of 1055940 is 495501.

Added to its reverse (495501) it gives a triangular number (1551441 = T₁₇₆₁).

1055940 = T₁₃₄ + T₁₃₅ + ... + T₂₀₅.

It is a super-2 number, since 2×1055940² = 2230018567200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1055940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1055947) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8740 + ... + 8859.

It is an arithmetic number, because the mean of its divisors is an integer number (123200).

2^1055940 is an apocalyptic number.

1055940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1055940 is an abundant number, since it is smaller than the sum of its proper divisors (1900860).

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

1055940 is a wasteful number, since it uses less digits than its factorization.

1055940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17611 (or 17609 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 1055940 is about 1027.5894121681. The cubic root of 1055940 is about 101.8309387039.

Adding to 1055940 its reverse (495501), we get a triangular number (1551441 = T₁₇₆₁).

The spelling of 1055940 in words is "one million, fifty-five thousand, nine hundred forty".