28572046 has 4 divisors (see below), whose sum is σ = 42858072. Its totient is φ = 14286022.

The previous prime is 28572001. The next prime is 28572073. The reversal of 28572046 is 64027582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64027582 = 2 ⋅32013791.

It is a super-2 number, since 2×28572046² = 1632723625252232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7143010 + ... + 7143013.

It is an arithmetic number, because the mean of its divisors is an integer number (10714518).

Almost surely, 2^28572046 is an apocalyptic number.

28572046 is a deficient number, since it is larger than the sum of its proper divisors (14286026).

28572046 is a wasteful number, since it uses less digits than its factorization.

28572046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14286025.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 28572046 is about 5345.2825930908. The cubic root of 28572046 is about 305.7129108532.

The spelling of 28572046 in words is "twenty-eight million, five hundred seventy-two thousand, forty-six".