1361040 has 80 divisors (see below), whose sum is σ = 4339008. Its totient is φ = 352768.

The previous prime is 1361029. The next prime is 1361047. The reversal of 1361040 is 401631.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1361047) 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 15 ways as a sum of consecutive naturals, for example, 12667 + ... + 12773.

2^1361040 is an apocalyptic number.

1361040 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 1361040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2169504).

1361040 is an abundant number, since it is smaller than the sum of its proper divisors (2977968).

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

1361040 is a wasteful number, since it uses less digits than its factorization.

1361040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1361040 is about 1166.6361900781. The cubic root of 1361040 is about 110.8213993344.

Adding to 1361040 its reverse (401631), we get a palindrome (1762671).

It can be divided in two parts, 136 and 1040, that added together give a triangular number (1176 = T₄₈).

The spelling of 1361040 in words is "one million, three hundred sixty-one thousand, forty".