4020534451 has 8 divisors (see below), whose sum is σ = 4177342800. Its totient is φ = 3864937440.

The previous prime is 4020534449. The next prime is 4020534487. The reversal of 4020534451 is 1544350204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4020534451 - 2¹ = 4020534449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4020534431) 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, 296065 + ... + 309346.

It is an arithmetic number, because the mean of its divisors is an integer number (522167850).

Almost surely, 2^4020534451 is an apocalyptic number.

4020534451 is a deficient number, since it is larger than the sum of its proper divisors (156808349).

4020534451 is a wasteful number, since it uses less digits than its factorization.

4020534451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 605669.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 4020534451 is about 63407.6844790913. The cubic root of 4020534451 is about 1590.1127843470.

Adding to 4020534451 its reverse (1544350204), we get a palindrome (5564884655).

The spelling of 4020534451 in words is "four billion, twenty million, five hundred thirty-four thousand, four hundred fifty-one".