214417640 has 32 divisors (see below), whose sum is σ = 482906880. Its totient is φ = 85684032.

The previous prime is 214417633. The next prime is 214417649. The reversal of 214417640 is 46714412.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (214417649) 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, 55037 + ... + 58803.

It is an arithmetic number, because the mean of its divisors is an integer number (15090840).

Almost surely, 2^214417640 is an apocalyptic number.

214417640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

214417640 is an abundant number, since it is smaller than the sum of its proper divisors (268489240).

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

214417640 is a wasteful number, since it uses less digits than its factorization.

214417640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5201 (or 5197 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 214417640 is about 14643.0065218861. The cubic root of 214417640 is about 598.5312594542.

The spelling of 214417640 in words is "two hundred fourteen million, four hundred seventeen thousand, six hundred forty".