1478397345 has 16 divisors (see below), whose sum is σ = 2429367360. Its totient is φ = 767168064.

The previous prime is 1478397341. The next prime is 1478397359. The reversal of 1478397345 is 5437938741.

It is a happy number.

It is not a de Polignac number, because 1478397345 - 2² = 1478397341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1478397341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1331335 + ... + 1332444.

It is an arithmetic number, because the mean of its divisors is an integer number (151835460).

Almost surely, 2^1478397345 is an apocalyptic number.

1478397345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1478397345 is a deficient number, since it is larger than the sum of its proper divisors (950970015).

1478397345 is a wasteful number, since it uses less digits than its factorization.

1478397345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663824.

The product of its digits is 2540160, while the sum is 51.

The square root of 1478397345 is about 38449.9329648310. The cubic root of 1478397345 is about 1139.1923449877.

The spelling of 1478397345 in words is "one billion, four hundred seventy-eight million, three hundred ninety-seven thousand, three hundred forty-five".