28051941 has 8 divisors (see below), whose sum is σ = 37428544. Its totient is φ = 18688320.

The previous prime is 28051937. The next prime is 28051943. The reversal of 28051941 is 14915082.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28051941 - 2² = 28051937 is a prime.

It is a super-2 number, since 2×28051941² = 1573822787734962, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28051899 and 28051908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28051943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4320 + ... + 8646.

It is an arithmetic number, because the mean of its divisors is an integer number (4678568).

Almost surely, 2^28051941 is an apocalyptic number.

It is an amenable number.

28051941 is a deficient number, since it is larger than the sum of its proper divisors (9376603).

28051941 is a wasteful number, since it uses less digits than its factorization.

28051941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6491.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 28051941 is about 5296.4083112993. The cubic root of 28051941 is about 303.8465472359.

The spelling of 28051941 in words is "twenty-eight million, fifty-one thousand, nine hundred forty-one".