4545442044 has 72 divisors (see below), whose sum is σ = 13498600752. Its totient is φ = 1271450880.

The previous prime is 4545442037. The next prime is 4545442093. The reversal of 4545442044 is 4402445454.

4545442044 is a `hidden beast` number, since 4 + 54 + 544 + 20 + 44 = 666.

It is a super-2 number, since 2×4545442044² = 41322086750725795872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 436329 + ... + 446624.

It is an arithmetic number, because the mean of its divisors is an integer number (187480566).

Almost surely, 2^4545442044 is an apocalyptic number.

4545442044 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

4545442044 is an abundant number, since it is smaller than the sum of its proper divisors (8953158708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4545442044 is a wasteful number, since it uses less digits than its factorization.

4545442044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882987 (or 882982 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 36.

The square root of 4545442044 is about 67419.8935329922. The cubic root of 4545442044 is about 1656.5022937199.

Adding to 4545442044 its reverse (4402445454), we get a palindrome (8947887498).

The spelling of 4545442044 in words is "four billion, five hundred forty-five million, four hundred forty-two thousand, forty-four".