28462478 has 32 divisors (see below), whose sum is σ = 47996928. Its totient is φ = 12549600.

The previous prime is 28462463. The next prime is 28462529. The reversal of 28462478 is 87426482.

It is a super-2 number, since 2×28462478² = 1620225307800968, which contains 22 as substring.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 170351 + ... + 170517.

It is an arithmetic number, because the mean of its divisors is an integer number (1499904).

Almost surely, 2^28462478 is an apocalyptic number.

28462478 is a deficient number, since it is larger than the sum of its proper divisors (19534450).

28462478 is a wasteful number, since it uses less digits than its factorization.

28462478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368.

The product of its digits is 172032, while the sum is 41.

The square root of 28462478 is about 5335.0237112875. The cubic root of 28462478 is about 305.3216279315.

The spelling of 28462478 in words is "twenty-eight million, four hundred sixty-two thousand, four hundred seventy-eight".