214406780 has 24 divisors (see below), whose sum is σ = 514576608. Its totient is φ = 73510848.

The previous prime is 214406761. The next prime is 214406837. The reversal of 214406780 is 87604412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 765599 + ... + 765878.

It is an arithmetic number, because the mean of its divisors is an integer number (21440692).

Almost surely, 2^214406780 is an apocalyptic number.

214406780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214406780 is an abundant number, since it is smaller than the sum of its proper divisors (300169828).

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

214406780 is a wasteful number, since it uses less digits than its factorization.

214406780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531493 (or 1531491 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 214406780 is about 14642.6356917052. The cubic root of 214406780 is about 598.5211543167.

The spelling of 214406780 in words is "two hundred fourteen million, four hundred six thousand, seven hundred eighty".