731742650 has 12 divisors (see below), whose sum is σ = 1361041422. Its totient is φ = 292697040.

The previous prime is 731742647. The next prime is 731742659. The reversal of 731742650 is 56247137.

It can be written as a sum of positive squares in 3 ways, for example, as 678758809 + 52983841 = 26053^2 + 7279^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 731742650.

It is not an unprimeable number, because it can be changed into a prime (731742659) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7317377 + ... + 7317476.

Almost surely, 2^731742650 is an apocalyptic number.

731742650 is a deficient number, since it is larger than the sum of its proper divisors (629298772).

731742650 is a wasteful number, since it uses less digits than its factorization.

731742650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14634865 (or 14634860 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 731742650 is about 27050.7421339970. The cubic root of 731742650 is about 901.1272500812.

Adding to 731742650 its reverse (56247137), we get a palindrome (787989787).

The spelling of 731742650 in words is "seven hundred thirty-one million, seven hundred forty-two thousand, six hundred fifty".