7251400442 has 16 divisors (see below), whose sum is σ = 12778692192. Its totient is φ = 3042545520.

The previous prime is 7251400423. The next prime is 7251400529. The reversal of 7251400442 is 2440041527.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12676988 + ... + 12677559.

It is an arithmetic number, because the mean of its divisors is an integer number (798668262).

Almost surely, 2^7251400442 is an apocalyptic number.

7251400442 is a deficient number, since it is larger than the sum of its proper divisors (5527291750).

7251400442 is a wasteful number, since it uses less digits than its factorization.

7251400442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25354573.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 7251400442 is about 85155.1551111264. The cubic root of 7251400442 is about 1935.5629315603.

Adding to 7251400442 its reverse (2440041527), we get a palindrome (9691441969).

The spelling of 7251400442 in words is "seven billion, two hundred fifty-one million, four hundred thousand, four hundred forty-two".