28141464 has 32 divisors (see below), whose sum is σ = 75766320. Its totient is φ = 8658816.

The previous prime is 28141447. The next prime is 28141469. The reversal of 28141464 is 46414182.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28141469) 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, 44787 + ... + 45410.

Almost surely, 2^28141464 is an apocalyptic number.

28141464 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28141464 is an abundant number, since it is smaller than the sum of its proper divisors (47624856).

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

28141464 is a wasteful number, since it uses less digits than its factorization.

28141464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90219 (or 90215 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 28141464 is about 5304.8528726064. The cubic root of 28141464 is about 304.1694288692.

It can be divided in two parts, 2814 and 1464, that added together give a triangular number (4278 = T₉₂).

The spelling of 28141464 in words is "twenty-eight million, one hundred forty-one thousand, four hundred sixty-four".