13478330 has 16 divisors (see below), whose sum is σ = 25098120. Its totient is φ = 5205312.

The previous prime is 13478329. The next prime is 13478341. The reversal of 13478330 is 3387431.

It can be written as a sum of positive squares in 4 ways, for example, as 9320809 + 4157521 = 3053^2 + 2039^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13478293 and 13478302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22949 + ... + 23528.

Almost surely, 2^13478330 is an apocalyptic number.

13478330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13478330 is a deficient number, since it is larger than the sum of its proper divisors (11619790).

13478330 is a wasteful number, since it uses less digits than its factorization.

13478330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46513.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 13478330 is about 3671.2845163512. The cubic root of 13478330 is about 237.9826859330.

The spelling of 13478330 in words is "thirteen million, four hundred seventy-eight thousand, three hundred thirty".