745504436 has 6 divisors (see below), whose sum is σ = 1304632770. Its totient is φ = 372752216.

The previous prime is 745504393. The next prime is 745504457. The reversal of 745504436 is 634405547.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 524684836 + 220819600 = 22906^2 + 14860^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 745504436.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93188051 + ... + 93188058.

It is an arithmetic number, because the mean of its divisors is an integer number (217438795).

Almost surely, 2^745504436 is an apocalyptic number.

It is an amenable number.

745504436 is a deficient number, since it is larger than the sum of its proper divisors (559128334).

745504436 is a wasteful number, since it uses less digits than its factorization.

745504436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186376113 (or 186376111 counting only the distinct ones).

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

The square root of 745504436 is about 27303.9271168087. The cubic root of 745504436 is about 906.7413278939.

It can be divided in two parts, 745 and 504436, that multiplied together give a triangular number (375804820 = T₂₇₄₁₅).

The spelling of 745504436 in words is "seven hundred forty-five million, five hundred four thousand, four hundred thirty-six".