214445590 has 16 divisors (see below), whose sum is σ = 406318320. Its totient is φ = 81263520.

The previous prime is 214445587. The next prime is 214445591. The reversal of 214445590 is 95544412.

It is a super-2 number, since 2×214445590² = 91973822140896200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214445591) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564141 + ... + 564520.

It is an arithmetic number, because the mean of its divisors is an integer number (25394895).

Almost surely, 2^214445590 is an apocalyptic number.

214445590 is a deficient number, since it is larger than the sum of its proper divisors (191872730).

214445590 is a wasteful number, since it uses less digits than its factorization.

214445590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1128687.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 214445590 is about 14643.9608712944. The cubic root of 214445590 is about 598.5572651222.

The spelling of 214445590 in words is "two hundred fourteen million, four hundred forty-five thousand, five hundred ninety".