214798728 has 16 divisors (see below), whose sum is σ = 536996880. Its totient is φ = 71599568.

The previous prime is 214798711. The next prime is 214798733. The reversal of 214798728 is 827897412.

It is a super-2 number, since 2×214798728² = 92276987100835968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4474950 + ... + 4474997.

It is an arithmetic number, because the mean of its divisors is an integer number (33562305).

Almost surely, 2^214798728 is an apocalyptic number.

It is an amenable number.

214798728 is an abundant number, since it is smaller than the sum of its proper divisors (322198152).

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

214798728 is a wasteful number, since it uses less digits than its factorization.

214798728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8949956 (or 8949952 counting only the distinct ones).

The product of its digits is 451584, while the sum is 48.

The square root of 214798728 is about 14656.0133733563. The cubic root of 214798728 is about 598.8856427389.

The spelling of 214798728 in words is "two hundred fourteen million, seven hundred ninety-eight thousand, seven hundred twenty-eight".