1213460 has 48 divisors (see below), whose sum is σ = 2794176. Its totient is φ = 440832.

The previous prime is 1213451. The next prime is 1213469. The reversal of 1213460 is 643121.

It is an interprime number because it is at equal distance from previous prime (1213451) and next prime (1213469).

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213469) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14579 + ... + 14661.

It is an arithmetic number, because the mean of its divisors is an integer number (58212).

2^1213460 is an apocalyptic number.

1213460 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 1213460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1397088).

1213460 is an abundant number, since it is smaller than the sum of its proper divisors (1580716).

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

1213460 is a wasteful number, since it uses less digits than its factorization.

1213460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1213460 is about 1101.5716045723. The cubic root of 1213460 is about 106.6616968171.

Adding to 1213460 its reverse (643121), we get a palindrome (1856581).

The spelling of 1213460 in words is "one million, two hundred thirteen thousand, four hundred sixty".