1347905412 has 72 divisors (see below), whose sum is σ = 3999218496. Its totient is φ = 374704704.

The previous prime is 1347905399. The next prime is 1347905417. The reversal of 1347905412 is 2145097431.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1347905417) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62958 + ... + 81605.

Almost surely, 2^1347905412 is an apocalyptic number.

1347905412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1347905412 is an abundant number, since it is smaller than the sum of its proper divisors (2651313084).

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

1347905412 is a wasteful number, since it uses less digits than its factorization.

1347905412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144617 (or 144612 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1347905412 is about 36713.8313446036. The cubic root of 1347905412 is about 1104.6375590393.

The spelling of 1347905412 in words is "one billion, three hundred forty-seven million, nine hundred five thousand, four hundred twelve".