1352402140 has 24 divisors (see below), whose sum is σ = 2989521360. Its totient is φ = 512489088.

The previous prime is 1352402123. The next prime is 1352402141. The reversal of 1352402140 is 412042531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1352402141) 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, 1779097 + ... + 1779856.

It is an arithmetic number, because the mean of its divisors is an integer number (124563390).

Almost surely, 2^1352402140 is an apocalyptic number.

1352402140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352402140 is an abundant number, since it is smaller than the sum of its proper divisors (1637119220).

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

1352402140 is a wasteful number, since it uses less digits than its factorization.

1352402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3558981 (or 3558979 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1352402140 is about 36775.0205982267. The cubic root of 1352402140 is about 1105.8645840919.

Adding to 1352402140 its reverse (412042531), we get a palindrome (1764444671).

The spelling of 1352402140 in words is "one billion, three hundred fifty-two million, four hundred two thousand, one hundred forty".