7240346228 has 6 divisors (see below), whose sum is σ = 12670605906. Its totient is φ = 3620173112.

The previous prime is 7240346227. The next prime is 7240346231. The reversal of 7240346228 is 8226430427.

It can be written as a sum of positive squares in only one way, i.e., 5980238224 + 1260108004 = 77332^2 + 35498^2 .

It is a super-2 number, since 2×7240346228² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7240346191 and 7240346200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7240346227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 905043275 + ... + 905043282.

It is an arithmetic number, because the mean of its divisors is an integer number (2111767651).

Almost surely, 2^7240346228 is an apocalyptic number.

It is an amenable number.

7240346228 is a deficient number, since it is larger than the sum of its proper divisors (5430259678).

7240346228 is a wasteful number, since it uses less digits than its factorization.

7240346228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810086561 (or 1810086559 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 38.

The square root of 7240346228 is about 85090.2240448337. The cubic root of 7240346228 is about 1934.5788913736.

The spelling of 7240346228 in words is "seven billion, two hundred forty million, three hundred forty-six thousand, two hundred twenty-eight".