28462434 has 96 divisors (see below), whose sum is σ = 77910336. Its totient is φ = 6814080.

The previous prime is 28462429. The next prime is 28462439. The reversal of 28462434 is 43426482.

It is an interprime number because it is at equal distance from previous prime (28462429) and next prime (28462439).

It is a super-2 number, since 2×28462434² = 1620220298408712, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 28462395 and 28462404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28462439) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41704 + ... + 42380.

It is an arithmetic number, because the mean of its divisors is an integer number (811566).

Almost surely, 2^28462434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28462434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38955168).

28462434 is an abundant number, since it is smaller than the sum of its proper divisors (49447902).

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

28462434 is a wasteful number, since it uses less digits than its factorization.

28462434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 713 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

The square root of 28462434 is about 5335.0195875929. The cubic root of 28462434 is about 305.3214705997.

The spelling of 28462434 in words is "twenty-eight million, four hundred sixty-two thousand, four hundred thirty-four".