1340612420 has 48 divisors (see below), whose sum is σ = 3219968640. Its totient is φ = 459281664.

The previous prime is 1340612411. The next prime is 1340612467. The reversal of 1340612420 is 242160431.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 229091 + ... + 234869.

It is an arithmetic number, because the mean of its divisors is an integer number (67082680).

Almost surely, 2^1340612420 is an apocalyptic number.

1340612420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1340612420 is an abundant number, since it is smaller than the sum of its proper divisors (1879356220).

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

1340612420 is a wasteful number, since it uses less digits than its factorization.

1340612420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7452 (or 7450 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1340612420 is about 36614.3744996415. The cubic root of 1340612420 is about 1102.6417003439.

Adding to 1340612420 its reverse (242160431), we get a palindrome (1582772851).

The spelling of 1340612420 in words is "one billion, three hundred forty million, six hundred twelve thousand, four hundred twenty".