28274376 has 48 divisors (see below), whose sum is σ = 76552560. Its totient is φ = 8698560.

The previous prime is 28274371. The next prime is 28274377. The reversal of 28274376 is 67347282.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (28274371) 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, 571 + ... + 7541.

It is an arithmetic number, because the mean of its divisors is an integer number (1594845).

Almost surely, 2^28274376 is an apocalyptic number.

28274376 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28274376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38276280).

28274376 is an abundant number, since it is smaller than the sum of its proper divisors (48278184).

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

28274376 is a wasteful number, since it uses less digits than its factorization.

28274376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7006 (or 6989 counting only the distinct ones).

The product of its digits is 112896, while the sum is 39.

The square root of 28274376 is about 5317.3655131089. The cubic root of 28274376 is about 304.6475405374.

The spelling of 28274376 in words is "twenty-eight million, two hundred seventy-four thousand, three hundred seventy-six".