28071454 has 16 divisors (see below), whose sum is σ = 46523808. Its totient is φ = 12635392.

The previous prime is 28071413. The next prime is 28071469. The reversal of 28071454 is 45417082.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17167 + ... + 18730.

It is an arithmetic number, because the mean of its divisors is an integer number (2907738).

Almost surely, 2^28071454 is an apocalyptic number.

28071454 is a deficient number, since it is larger than the sum of its proper divisors (18452354).

28071454 is a wasteful number, since it uses less digits than its factorization.

28071454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35939.

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 28071454 is about 5298.2500884726. The cubic root of 28071454 is about 303.9169830449.

The spelling of 28071454 in words is "twenty-eight million, seventy-one thousand, four hundred fifty-four".