1240270 has 16 divisors (see below), whose sum is σ = 2264400. Its totient is φ = 489024.

The previous prime is 1240247. The next prime is 1240271. The reversal of 1240270 is 720421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240271) 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, 120 + ... + 1579.

It is an arithmetic number, because the mean of its divisors is an integer number (141525).

2^1240270 is an apocalyptic number.

1240270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1240270 is a deficient number, since it is larger than the sum of its proper divisors (1024130).

1240270 is a wasteful number, since it uses less digits than its factorization.

1240270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1240270 is about 1113.6740995462. The cubic root of 1240270 is about 107.4415041408.

Adding to 1240270 its reverse (720421), we get a palindrome (1960691).

The spelling of 1240270 in words is "one million, two hundred forty thousand, two hundred seventy".