4455144542 has 32 divisors (see below), whose sum is σ = 7320396384. Its totient is φ = 2025088000.

The previous prime is 4455144541. The next prime is 4455144599. The reversal of 4455144542 is 2454415544.

It is a super-2 number, since 2×4455144542² = 39696625780224779528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4455144496 and 4455144505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4455144541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124973 + ... + 156615.

It is an arithmetic number, because the mean of its divisors is an integer number (228762387).

Almost surely, 2^4455144542 is an apocalyptic number.

4455144542 is a deficient number, since it is larger than the sum of its proper divisors (2865251842).

4455144542 is a wasteful number, since it uses less digits than its factorization.

4455144542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31804.

The product of its digits is 256000, while the sum is 38.

The square root of 4455144542 is about 66746.8691550398. The cubic root of 4455144542 is about 1645.4597609337.

The spelling of 4455144542 in words is "four billion, four hundred fifty-five million, one hundred forty-four thousand, five hundred forty-two".