214557772 has 24 divisors (see below), whose sum is σ = 441119952. Its totient is φ = 90024000.

The previous prime is 214557757. The next prime is 214557779. The reversal of 214557772 is 277755412.

It is not an unprimeable number, because it can be changed into a prime (214557779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186979 + ... + 188122.

It is an arithmetic number, because the mean of its divisors is an integer number (18379998).

Almost surely, 2^214557772 is an apocalyptic number.

214557772 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

214557772 is an abundant number, since it is smaller than the sum of its proper divisors (226562180).

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

214557772 is a wasteful number, since it uses less digits than its factorization.

214557772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375129 (or 375127 counting only the distinct ones).

The product of its digits is 137200, while the sum is 40.

The square root of 214557772 is about 14647.7906866531. The cubic root of 214557772 is about 598.6616204907.

The spelling of 214557772 in words is "two hundred fourteen million, five hundred fifty-seven thousand, seven hundred seventy-two".