28900046 has 16 divisors (see below), whose sum is σ = 49902720. Its totient is φ = 12295800.

The previous prime is 28899973. The next prime is 28900057. The reversal of 28900046 is 64000982.

It is a junction number, because it is equal to n+sod(n) for n = 28899991 and 28900018.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5480 + ... + 9371.

It is an arithmetic number, because the mean of its divisors is an integer number (3118920).

Almost surely, 2^28900046 is an apocalyptic number.

28900046 is a deficient number, since it is larger than the sum of its proper divisors (21002674).

28900046 is a wasteful number, since it uses less digits than its factorization.

28900046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14999.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 28900046 is about 5375.8763006602. The cubic root of 28900046 is about 306.8782988350.

The spelling of 28900046 in words is "twenty-eight million, nine hundred thousand, forty-six".