4020200247 has 48 divisors (see below), whose sum is σ = 6422646912. Its totient is φ = 2228990400.

The previous prime is 4020200243. The next prime is 4020200267. The reversal of 4020200247 is 7420020204.

It is not a de Polignac number, because 4020200247 - 2² = 4020200243 is a prime.

It is a super-2 number, since 2×4020200247² = 32324020051957722018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020200243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 990372 + ... + 994422.

It is an arithmetic number, because the mean of its divisors is an integer number (133805144).

Almost surely, 2^4020200247 is an apocalyptic number.

4020200247 is a deficient number, since it is larger than the sum of its proper divisors (2402446665).

4020200247 is a wasteful number, since it uses less digits than its factorization.

4020200247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4268 (or 4261 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 4020200247 is about 63405.0490655121. The cubic root of 4020200247 is about 1590.0687241368.

The spelling of 4020200247 in words is "four billion, twenty million, two hundred thousand, two hundred forty-seven".