1361660 has 24 divisors (see below), whose sum is σ = 2891616. Its totient is φ = 538560.

The previous prime is 1361629. The next prime is 1361677. The reversal of 1361660 is 661631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1730 + ... + 2390.

It is an arithmetic number, because the mean of its divisors is an integer number (120484).

2^1361660 is an apocalyptic number.

1361660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361660 is an abundant number, since it is smaller than the sum of its proper divisors (1529956).

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

1361660 is a wasteful number, since it uses less digits than its factorization.

1361660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 773 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1361660 is about 1166.9018810508. The cubic root of 1361660 is about 110.8382244184.

The spelling of 1361660 in words is "one million, three hundred sixty-one thousand, six hundred sixty".