219557140 has 48 divisors (see below), whose sum is σ = 514704960. Its totient is φ = 77978880.

The previous prime is 219557137. The next prime is 219557201. The reversal of 219557140 is 41755912.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 219557096 and 219557105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2145 + ... + 21064.

It is an arithmetic number, because the mean of its divisors is an integer number (10723020).

Almost surely, 2^219557140 is an apocalyptic number.

219557140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

219557140 is an abundant number, since it is smaller than the sum of its proper divisors (295147820).

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

219557140 is a wasteful number, since it uses less digits than its factorization.

219557140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23272 (or 23270 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 34.

The square root of 219557140 is about 14817.4606461431. The cubic root of 219557140 is about 603.2757315730.

The spelling of 219557140 in words is "two hundred nineteen million, five hundred fifty-seven thousand, one hundred forty".