7245901640 has 32 divisors (see below), whose sum is σ = 16650161280. Its totient is φ = 2836692672.

The previous prime is 7245901631. The next prime is 7245901657. The reversal of 7245901640 is 461095427.

It is a junction number, because it is equal to n+sod(n) for n = 7245901594 and 7245901603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925222 + ... + 1928981.

It is an arithmetic number, because the mean of its divisors is an integer number (520317540).

Almost surely, 2^7245901640 is an apocalyptic number.

It is an amenable number.

7245901640 is an abundant number, since it is smaller than the sum of its proper divisors (9404259640).

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

7245901640 is a wasteful number, since it uses less digits than its factorization.

7245901640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854261 (or 3854257 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 7245901640 is about 85122.8620289520. The cubic root of 7245901640 is about 1935.0735562626.

The spelling of 7245901640 in words is "seven billion, two hundred forty-five million, nine hundred one thousand, six hundred forty".