654344043 has 32 divisors (see below), whose sum is σ = 940032000. Its totient is φ = 403899936.

The previous prime is 654344027. The next prime is 654344057. The reversal of 654344043 is 340443456.

It is not a de Polignac number, because 654344043 - 2⁴ = 654344027 is a prime.

It is a super-2 number, since 2×654344043² = 856332253219171698, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 654343995 and 654344013.

It is not an unprimeable number, because it can be changed into a prime (654344143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 271558 + ... + 273956.

It is an arithmetic number, because the mean of its divisors is an integer number (29376000).

Almost surely, 2^654344043 is an apocalyptic number.

654344043 is a deficient number, since it is larger than the sum of its proper divisors (285687957).

654344043 is a wasteful number, since it uses less digits than its factorization.

654344043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551.

The product of its (nonzero) digits is 69120, while the sum is 33.

The square root of 654344043 is about 25580.1493936216. The cubic root of 654344043 is about 868.1645556300.

Adding to 654344043 its reverse (340443456), we get a palindrome (994787499).

The spelling of 654344043 in words is "six hundred fifty-four million, three hundred forty-four thousand, forty-three".