1352444240 has 40 divisors (see below), whose sum is σ = 3593639040. Its totient is φ = 463694976.

The previous prime is 1352444221. The next prime is 1352444251. The reversal of 1352444240 is 424442531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1206980 + ... + 1208099.

It is an arithmetic number, because the mean of its divisors is an integer number (89840976).

Almost surely, 2^1352444240 is an apocalyptic number.

1352444240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352444240 is an abundant number, since it is smaller than the sum of its proper divisors (2241194800).

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

1352444240 is a wasteful number, since it uses less digits than its factorization.

1352444240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415099 (or 2415093 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 1352444240 is about 36775.5929931796. The cubic root of 1352444240 is about 1105.8760590851.

Adding to 1352444240 its reverse (424442531), we get a palindrome (1776886771).

The spelling of 1352444240 in words is "one billion, three hundred fifty-two million, four hundred forty-four thousand, two hundred forty".