28070396 has 12 divisors (see below), whose sum is σ = 51259152. Its totient is φ = 13424928.

The previous prime is 28070377. The next prime is 28070411. The reversal of 28070396 is 69307082.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152465 + ... + 152648.

It is an arithmetic number, because the mean of its divisors is an integer number (4271596).

Almost surely, 2^28070396 is an apocalyptic number.

It is an amenable number.

28070396 is a deficient number, since it is larger than the sum of its proper divisors (23188756).

28070396 is a wasteful number, since it uses less digits than its factorization.

28070396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305140 (or 305138 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 28070396 is about 5298.1502432453. The cubic root of 28070396 is about 303.9131648339.

The spelling of 28070396 in words is "twenty-eight million, seventy thousand, three hundred ninety-six".