227978100 has 108 divisors (see below), whose sum is σ = 816690784. Its totient is φ = 52107840.

The previous prime is 227978099. The next prime is 227978111. The reversal of 227978100 is 1879722.

It is a super-2 number, since 2×227978100² = 103948028159220000, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11794 + ... + 24393.

Almost surely, 2^227978100 is an apocalyptic number.

227978100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

227978100 is an abundant number, since it is smaller than the sum of its proper divisors (588712684).

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

227978100 is a wasteful number, since it uses less digits than its factorization.

227978100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36214 (or 36204 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 227978100 is about 15098.9436716613. The cubic root of 227978100 is about 610.8919139177.

The spelling of 227978100 in words is "two hundred twenty-seven million, nine hundred seventy-eight thousand, one hundred".