28417464 has 48 divisors (see below), whose sum is σ = 81018600. Its totient is φ = 8973504.

The previous prime is 28417463. The next prime is 28417481. The reversal of 28417464 is 46471482.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28417463) 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, 9019 + ... + 11754.

Almost surely, 2^28417464 is an apocalyptic number.

28417464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28417464 is an abundant number, since it is smaller than the sum of its proper divisors (52601136).

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

28417464 is a wasteful number, since it uses less digits than its factorization.

28417464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20804 (or 20797 counting only the distinct ones).

The product of its digits is 43008, while the sum is 36.

The square root of 28417464 is about 5330.8033165743. The cubic root of 28417464 is about 305.1605855061.

The spelling of 28417464 in words is "twenty-eight million, four hundred seventeen thousand, four hundred sixty-four".