7226897840 has 40 divisors (see below), whose sum is σ = 16809444960. Its totient is φ = 2889570816.

The previous prime is 7226897833. The next prime is 7226897851. The reversal of 7226897840 is 487986227.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192101 + ... + 226619.

It is an arithmetic number, because the mean of its divisors is an integer number (420236124).

Almost surely, 2^7226897840 is an apocalyptic number.

It is an amenable number.

7226897840 is an abundant number, since it is smaller than the sum of its proper divisors (9582547120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7226897840 is a wasteful number, since it uses less digits than its factorization.

7226897840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37149 (or 37143 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 7226897840 is about 85011.1630316866. The cubic root of 7226897840 is about 1933.3803716921.

The spelling of 7226897840 in words is "seven billion, two hundred twenty-six million, eight hundred ninety-seven thousand, eight hundred forty".