1201240 has 32 divisors (see below), whose sum is σ = 2754000. Its totient is φ = 471424.

The previous prime is 1201229. The next prime is 1201241. The reversal of 1201240 is 421021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2106 + ... + 2614.

2^1201240 is an apocalyptic number.

1201240 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 1201240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1377000).

1201240 is an abundant number, since it is smaller than the sum of its proper divisors (1552760).

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

1201240 is a wasteful number, since it uses less digits than its factorization.

1201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 1201240 is about 1096.0109488504. The cubic root of 1201240 is about 106.3024470020.

Adding to 1201240 its reverse (421021), we get a palindrome (1622261).

It can be divided in two parts, 1201 and 240, that added together give a palindrome (1441).

The spelling of 1201240 in words is "one million, two hundred one thousand, two hundred forty".