28298350 has 24 divisors (see below), whose sum is σ = 54335808. Its totient is φ = 10953600.

The previous prime is 28298341. The next prime is 28298359. The reversal of 28298350 is 5389282.

It is an interprime number because it is at equal distance from previous prime (28298341) and next prime (28298359).

It is a super-2 number, since 2×28298350² = 1601593225445000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28298359) 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, 7579 + ... + 10678.

It is an arithmetic number, because the mean of its divisors is an integer number (2263992).

Almost surely, 2^28298350 is an apocalyptic number.

28298350 is a deficient number, since it is larger than the sum of its proper divisors (26037458).

28298350 is a wasteful number, since it uses less digits than its factorization.

28298350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18300 (or 18295 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 28298350 is about 5319.6193472842. The cubic root of 28298350 is about 304.7336203250.

It can be divided in two parts, 28 and 298350, that added together give a triangular number (298378 = T₇₇₂).

The spelling of 28298350 in words is "twenty-eight million, two hundred ninety-eight thousand, three hundred fifty".