745042444 has 24 divisors (see below), whose sum is σ = 1314673920. Its totient is φ = 369432336.

The previous prime is 745042439. The next prime is 745042489. The reversal of 745042444 is 444240547.

It is a super-2 number, since 2×745042444² = 1110176486722986272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 364377 + ... + 366415.

It is an arithmetic number, because the mean of its divisors is an integer number (54778080).

Almost surely, 2^745042444 is an apocalyptic number.

It is an amenable number.

745042444 is a deficient number, since it is larger than the sum of its proper divisors (569631476).

745042444 is a wasteful number, since it uses less digits than its factorization.

745042444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2757 (or 2755 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 34.

The square root of 745042444 is about 27295.4656307600. The cubic root of 745042444 is about 906.5539854799.

It can be divided in two parts, 7450 and 42444, that added together give a palindrome (49894).

The spelling of 745042444 in words is "seven hundred forty-five million, forty-two thousand, four hundred forty-four".