7242603821 has 16 divisors (see below), whose sum is σ = 7515461184. Its totient is φ = 6974843904.

The previous prime is 7242603817. The next prime is 7242603827. The reversal of 7242603821 is 1283062427.

It is a cyclic number.

It is not a de Polignac number, because 7242603821 - 2² = 7242603817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7242603827) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2057555 + ... + 2061071.

It is an arithmetic number, because the mean of its divisors is an integer number (469716324).

Almost surely, 2^7242603821 is an apocalyptic number.

It is an amenable number.

7242603821 is a deficient number, since it is larger than the sum of its proper divisors (272857363).

7242603821 is a wasteful number, since it uses less digits than its factorization.

7242603821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4220.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 7242603821 is about 85103.4888885291. The cubic root of 7242603821 is about 1934.7799424359.

The spelling of 7242603821 in words is "seven billion, two hundred forty-two million, six hundred three thousand, eight hundred twenty-one".