1212480 has 84 divisors (see below), whose sum is σ = 4180332. Its totient is φ = 322560.

The previous prime is 1212479. The next prime is 1212487. The reversal of 1212480 is 842121.

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 1065024 = 384^2 + 1032^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1212487) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2670 + ... + 3090.

2^1212480 is an apocalyptic number.

1212480 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 1212480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2090166).

1212480 is an abundant number, since it is smaller than the sum of its proper divisors (2967852).

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

1212480 is a wasteful number, since it uses less digits than its factorization.

1212480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1212480 is about 1101.1266957076. The cubic root of 1212480 is about 106.6329754707.

It can be divided in two parts, 121 and 2480, that added together give a square (2601 = 51²).

The spelling of 1212480 in words is "one million, two hundred twelve thousand, four hundred eighty".