28940094 has 24 divisors (see below), whose sum is σ = 62802792. Its totient is φ = 9631440.

The previous prime is 28940089. The next prime is 28940099. The reversal of 28940094 is 49004982.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28940089) and next prime (28940099).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28940099) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20392 + ... + 21764.

It is an arithmetic number, because the mean of its divisors is an integer number (2616783).

Almost surely, 2^28940094 is an apocalyptic number.

28940094 is an abundant number, since it is smaller than the sum of its proper divisors (33862698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28940094 is a wasteful number, since it uses less digits than its factorization.

28940094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2552 (or 2549 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 28940094 is about 5379.5997992416. The cubic root of 28940094 is about 307.0199847643.

The spelling of 28940094 in words is "twenty-eight million, nine hundred forty thousand, ninety-four".