1346420240 has 120 divisors (see below), whose sum is σ = 3459361920. Its totient is φ = 486984960.

The previous prime is 1346420239. The next prime is 1346420291. The reversal of 1346420240 is 420246431.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3552371 + ... + 3552749.

It is an arithmetic number, because the mean of its divisors is an integer number (28828016).

Almost surely, 2^1346420240 is an apocalyptic number.

1346420240 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 1346420240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1729680960).

1346420240 is an abundant number, since it is smaller than the sum of its proper divisors (2112941680).

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

1346420240 is a wasteful number, since it uses less digits than its factorization.

1346420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781 (or 764 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1346420240 is about 36693.5994418645. The cubic root of 1346420240 is about 1104.2316997763.

Adding to 1346420240 its reverse (420246431), we get a palindrome (1766666671).

The spelling of 1346420240 in words is "one billion, three hundred forty-six million, four hundred twenty thousand, two hundred forty".