28722354 has 32 divisors (see below), whose sum is σ = 62017920. Its totient is φ = 8840832.

The previous prime is 28722349. The next prime is 28722359. The reversal of 28722354 is 45322782.

It is an interprime number because it is at equal distance from previous prime (28722349) and next prime (28722359).

It is not an unprimeable number, because it can be changed into a prime (28722359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414 + ... + 7590.

It is an arithmetic number, because the mean of its divisors is an integer number (1938060).

Almost surely, 2^28722354 is an apocalyptic number.

28722354 is an abundant number, since it is smaller than the sum of its proper divisors (33295566).

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

28722354 is a wasteful number, since it uses less digits than its factorization.

28722354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7234.

The product of its digits is 26880, while the sum is 33.

The square root of 28722354 is about 5359.3240245389. The cubic root of 28722354 is about 306.2480580746.

The spelling of 28722354 in words is "twenty-eight million, seven hundred twenty-two thousand, three hundred fifty-four".