4020345454 has 8 divisors (see below), whose sum is σ = 6086878488. Its totient is φ = 1991385960.

The previous prime is 4020345403. The next prime is 4020345457. The reversal of 4020345454 is 4545430204.

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

It is a super-2 number, since 2×4020345454² = 32326355138996932232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4020345457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9393117 + ... + 9393544.

It is an arithmetic number, because the mean of its divisors is an integer number (760859811).

Almost surely, 2^4020345454 is an apocalyptic number.

4020345454 is a deficient number, since it is larger than the sum of its proper divisors (2066533034).

4020345454 is a wasteful number, since it uses less digits than its factorization.

4020345454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18786770.

The product of its (nonzero) digits is 38400, while the sum is 31.

The square root of 4020345454 is about 63406.1941295959. The cubic root of 4020345454 is about 1590.0878679867.

Adding to 4020345454 its reverse (4545430204), we get a palindrome (8565775658).

The spelling of 4020345454 in words is "four billion, twenty million, three hundred forty-five thousand, four hundred fifty-four".