7212840349 has 8 divisors (see below), whose sum is σ = 8473826592. Its totient is φ = 6052733040.

The previous prime is 7212840307. The next prime is 7212840373. The reversal of 7212840349 is 9430482127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7212840349 - 2⁷ = 7212840221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212840049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25219579 + ... + 25219864.

It is an arithmetic number, because the mean of its divisors is an integer number (1059228324).

Almost surely, 2^7212840349 is an apocalyptic number.

It is an amenable number.

7212840349 is a deficient number, since it is larger than the sum of its proper divisors (1260986243).

7212840349 is a wasteful number, since it uses less digits than its factorization.

7212840349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50439467.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 7212840349 is about 84928.4425207480. The cubic root of 7212840349 is about 1932.1259783120.

The spelling of 7212840349 in words is "seven billion, two hundred twelve million, eight hundred forty thousand, three hundred forty-nine".