3640206272 has 14 divisors (see below), whose sum is σ = 7223534448. Its totient is φ = 1820103104.

The previous prime is 3640206253. The next prime is 3640206301. The reversal of 3640206272 is 2726020463.

It is a super-2 number, since 2×3640206272² = 26502203405416275968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28439048 + ... + 28439175.

Almost surely, 2^3640206272 is an apocalyptic number.

3640206272 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3640206272 is a deficient number, since it is larger than the sum of its proper divisors (3583328176).

3640206272 is an equidigital number, since it uses as much as digits as its factorization.

3640206272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56878235 (or 56878225 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 3640206272 is about 60334.1219543303. The cubic root of 3640206272 is about 1538.3033926917.

The spelling of 3640206272 in words is "three billion, six hundred forty million, two hundred six thousand, two hundred seventy-two".