745543622 has 16 divisors (see below), whose sum is σ = 1182073200. Its totient is φ = 351682560.

The previous prime is 745543613. The next prime is 745543627. The reversal of 745543622 is 226345547.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (745543627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31547 + ... + 49862.

It is an arithmetic number, because the mean of its divisors is an integer number (73879575).

Almost surely, 2^745543622 is an apocalyptic number.

745543622 is a deficient number, since it is larger than the sum of its proper divisors (436529578).

745543622 is a wasteful number, since it uses less digits than its factorization.

745543622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81671.

The product of its digits is 201600, while the sum is 38.

The square root of 745543622 is about 27304.6446964614. The cubic root of 745543622 is about 906.7572146508.

The spelling of 745543622 in words is "seven hundred forty-five million, five hundred forty-three thousand, six hundred twenty-two".