1361940 has 24 divisors (see below), whose sum is σ = 3813600. Its totient is φ = 363168.

The previous prime is 1361929. The next prime is 1361953. The reversal of 1361940 is 491631.

1361940 = T₃₅₉ + T₃₆₀ + ... + T₃₇₈.

It is a self number, because there is not a number n which added to its sum of digits gives 1361940.

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 7 ways as a sum of consecutive naturals, for example, 11290 + ... + 11409.

It is an arithmetic number, because the mean of its divisors is an integer number (158900).

2^1361940 is an apocalyptic number.

1361940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1361940 is an abundant number, since it is smaller than the sum of its proper divisors (2451660).

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

1361940 is a wasteful number, since it uses less digits than its factorization.

1361940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22711 (or 22709 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1361940 is about 1167.0218506952. The cubic root of 1361940 is about 110.8458211694.

The spelling of 1361940 in words is "one million, three hundred sixty-one thousand, nine hundred forty".