7394428505 has 16 divisors (see below), whose sum is σ = 8932581504. Its totient is φ = 5876081280.

The previous prime is 7394428499. The next prime is 7394428537. The reversal of 7394428505 is 5058244937.

It is not a de Polignac number, because 7394428505 - 2⁶ = 7394428441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7394428505.

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 15 ways as a sum of consecutive naturals, for example, 2011349 + ... + 2015021.

It is an arithmetic number, because the mean of its divisors is an integer number (558286344).

Almost surely, 2^7394428505 is an apocalyptic number.

It is an amenable number.

7394428505 is a deficient number, since it is larger than the sum of its proper divisors (1538152999).

7394428505 is a wasteful number, since it uses less digits than its factorization.

7394428505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6256.

The product of its (nonzero) digits is 1209600, while the sum is 47.

The square root of 7394428505 is about 85990.8629157773. The cubic root of 7394428505 is about 1948.2059769836.

It can be divided in two parts, 739 and 4428505, that added together give a palindrome (4429244).

The spelling of 7394428505 in words is "seven billion, three hundred ninety-four million, four hundred twenty-eight thousand, five hundred five".