7242736328 has 8 divisors (see below), whose sum is σ = 13580130630. Its totient is φ = 3621368160.

The previous prime is 7242736307. The next prime is 7242736339. The reversal of 7242736328 is 8236372427.

It can be written as a sum of positive squares in only one way, i.e., 5812232644 + 1430503684 = 76238^2 + 37822^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 452671013 + ... + 452671028.

Almost surely, 2^7242736328 is an apocalyptic number.

It is an amenable number.

7242736328 is a deficient number, since it is larger than the sum of its proper divisors (6337394302).

7242736328 is a wasteful number, since it uses less digits than its factorization.

7242736328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 905342047 (or 905342043 counting only the distinct ones).

The product of its digits is 677376, while the sum is 44.

The square root of 7242736328 is about 85104.2673900669. The cubic root of 7242736328 is about 1934.7917416143.

The spelling of 7242736328 in words is "seven billion, two hundred forty-two million, seven hundred thirty-six thousand, three hundred twenty-eight".