15428454 has 8 divisors (see below), whose sum is σ = 30856920. Its totient is φ = 5142816.

The previous prime is 15428453. The next prime is 15428461. The reversal of 15428454 is 45482451.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

15428454 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15428453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285699 + ... + 1285710.

It is an arithmetic number, because the mean of its divisors is an integer number (3857115).

Almost surely, 2^15428454 is an apocalyptic number.

15428454 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15428454 is a wasteful number, since it uses less digits than its factorization.

15428454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571414.

The product of its digits is 25600, while the sum is 33.

The square root of 15428454 is about 3927.9070762939. The cubic root of 15428454 is about 248.9473284181.

The spelling of 15428454 in words is "fifteen million, four hundred twenty-eight thousand, four hundred fifty-four".