72241492 has 6 divisors (see below), whose sum is σ = 126422618. Its totient is φ = 36120744.

The previous prime is 72241487. The next prime is 72241493. The reversal of 72241492 is 29414227.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 17422276 = 7404^2 + 4174^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72241493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9030183 + ... + 9030190.

Almost surely, 2^72241492 is an apocalyptic number.

It is an amenable number.

72241492 is a deficient number, since it is larger than the sum of its proper divisors (54181126).

72241492 is a wasteful number, since it uses less digits than its factorization.

72241492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18060377 (or 18060375 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 72241492 is about 8499.4995146773. The cubic root of 72241492 is about 416.4813600175.

The spelling of 72241492 in words is "seventy-two million, two hundred forty-one thousand, four hundred ninety-two".