347978432 has 14 divisors (see below), whose sum is σ = 690519828. Its totient is φ = 173989184.

The previous prime is 347978429. The next prime is 347978437. The reversal of 347978432 is 234879743.

It is not an unprimeable number, because it can be changed into a prime (347978437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2718518 + ... + 2718645.

Almost surely, 2^347978432 is an apocalyptic number.

347978432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

347978432 is a deficient number, since it is larger than the sum of its proper divisors (342541396).

347978432 is an equidigital number, since it uses as much as digits as its factorization.

347978432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5437175 (or 5437165 counting only the distinct ones).

The product of its digits is 1016064, while the sum is 47.

The square root of 347978432 is about 18654.1800141416. The cubic root of 347978432 is about 703.3704340669.

The spelling of 347978432 in words is "three hundred forty-seven million, nine hundred seventy-eight thousand, four hundred thirty-two".