1051660 has 12 divisors (see below), whose sum is σ = 2208528. Its totient is φ = 420656.

The previous prime is 1051649. The next prime is 1051663. The reversal of 1051660 is 661501.

It is a super-2 number, since 2×1051660² = 2211977511200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1051663) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26272 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (184044).

2^1051660 is an apocalyptic number.

1051660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1051660 is an abundant number, since it is smaller than the sum of its proper divisors (1156868).

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

1051660 is a wasteful number, since it uses less digits than its factorization.

1051660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52592 (or 52590 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1051660 is about 1025.5047537676. The cubic root of 1051660 is about 101.6931699544.

It can be divided in two parts, 1051 and 660, that added together give a triangular number (1711 = T₅₈).

The spelling of 1051660 in words is "one million, fifty-one thousand, six hundred sixty".