28463378 has 8 divisors (see below), whose sum is σ = 42726960. Its totient is φ = 14221060.

The previous prime is 28463371. The next prime is 28463399. The reversal of 28463378 is 87336482.

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

It is not an unprimeable number, because it can be changed into a prime (28463371) 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, 1388 + ... + 7671.

It is an arithmetic number, because the mean of its divisors is an integer number (5340870).

Almost surely, 2^28463378 is an apocalyptic number.

28463378 is a deficient number, since it is larger than the sum of its proper divisors (14263582).

28463378 is a wasteful number, since it uses less digits than its factorization.

28463378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10632.

The product of its digits is 193536, while the sum is 41.

The square root of 28463378 is about 5335.1080588869. The cubic root of 28463378 is about 305.3248460464.

The spelling of 28463378 in words is "twenty-eight million, four hundred sixty-three thousand, three hundred seventy-eight".