4206949321 has 9 divisors (see below), whose sum is σ = 4326191541. Its totient is φ = 4090912992.

The previous prime is 4206949309. The next prime is 4206949337. The reversal of 4206949321 is 1239496024.

The square root of 4206949321 is 64861.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 108388921 + 4098560400 = 10411^2 + 64020^2 .

It is not a de Polignac number, because 4206949321 - 2²⁹ = 3670078409 is a prime.

It is a super-2 number, since 2×4206949321² = 35396845178924722082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4206949921) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2398981 + ... + 2400733.

It is an arithmetic number, because the mean of its divisors is an integer number (480687949).

Almost surely, 2^4206949321 is an apocalyptic number.

4206949321 is the 64861-st square number.

4206949321 is the 32431-st centered octagonal number.

It is an amenable number.

4206949321 is a deficient number, since it is larger than the sum of its proper divisors (119242220).

4206949321 is an frugal number, since it uses more digits than its factorization.

4206949321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3580 (or 1790 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The cubic root of 4206949321 is about 1614.3180154951.

The spelling of 4206949321 in words is "four billion, two hundred six million, nine hundred forty-nine thousand, three hundred twenty-one".