7148728402 has 8 divisors (see below), whose sum is σ = 11068998912. Its totient is φ = 3459062100.

The previous prime is 7148728393. The next prime is 7148728421. The reversal of 7148728402 is 2048278417.

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

It is a super-2 number, since 2×7148728402² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57650974 + ... + 57651097.

It is an arithmetic number, because the mean of its divisors is an integer number (1383624864).

Almost surely, 2^7148728402 is an apocalyptic number.

7148728402 is a deficient number, since it is larger than the sum of its proper divisors (3920270510).

7148728402 is a wasteful number, since it uses less digits than its factorization.

7148728402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115302104.

The product of its (nonzero) digits is 200704, while the sum is 43.

The square root of 7148728402 is about 84550.1531754970. The cubic root of 7148728402 is about 1926.3843105750.

The spelling of 7148728402 in words is "seven billion, one hundred forty-eight million, seven hundred twenty-eight thousand, four hundred two".