13628738 has 32 divisors (see below), whose sum is σ = 22472640. Its totient is φ = 6177600.

The previous prime is 13628737. The next prime is 13628743. The reversal of 13628738 is 83782631.

It is a happy number.

It is a super-3 number, since 3×13628738³ (a number of 22 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (13628737) 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, 134888 + ... + 134988.

It is an arithmetic number, because the mean of its divisors is an integer number (702270).

Almost surely, 2^13628738 is an apocalyptic number.

13628738 is a deficient number, since it is larger than the sum of its proper divisors (8843902).

13628738 is a wasteful number, since it uses less digits than its factorization.

13628738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242.

The product of its digits is 48384, while the sum is 38.

The square root of 13628738 is about 3691.7120689458. The cubic root of 13628738 is about 238.8646491199.

The spelling of 13628738 in words is "thirteen million, six hundred twenty-eight thousand, seven hundred thirty-eight".