1301940 has 48 divisors (see below), whose sum is σ = 4052160. Its totient is φ = 347040.

The previous prime is 1301939. The next prime is 1301941. The reversal of 1301940 is 491031.

It is an interprime number because it is at equal distance from previous prime (1301939) and next prime (1301941).

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 666 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (84420).

2^1301940 is an apocalyptic number.

1301940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301940 is an abundant number, since it is smaller than the sum of its proper divisors (2750220).

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

1301940 is a wasteful number, since it uses less digits than its factorization.

1301940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2429 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1301940 is about 1141.0258542207. The cubic root of 1301940 is about 109.1935511226.

Adding to 1301940 its reverse (491031), we get a palindrome (1792971).

The spelling of 1301940 in words is "one million, three hundred one thousand, nine hundred forty".