28373422 has 32 divisors (see below), whose sum is σ = 55860480. Its totient is φ = 10471680.

The previous prime is 28373419. The next prime is 28373431. The reversal of 28373422 is 22437382.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1923 + ... + 7774.

It is an arithmetic number, because the mean of its divisors is an integer number (1745640).

Almost surely, 2^28373422 is an apocalyptic number.

28373422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28373422 is a deficient number, since it is larger than the sum of its proper divisors (27487058).

28373422 is a wasteful number, since it uses less digits than its factorization.

28373422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9736.

The product of its digits is 16128, while the sum is 31.

The square root of 28373422 is about 5326.6708176872. The cubic root of 28373422 is about 305.0028558364.

The spelling of 28373422 in words is "twenty-eight million, three hundred seventy-three thousand, four hundred twenty-two".