7449390785 has 8 divisors (see below), whose sum is σ = 8941133376. Its totient is φ = 5958269680.

The previous prime is 7449390763. The next prime is 7449390791. The reversal of 7449390785 is 5870939447.

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

It is a de Polignac number, because none of the positive numbers 2^k-7449390785 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7449390785.

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, 128579 + ... + 177288.

It is an arithmetic number, because the mean of its divisors is an integer number (1117641672).

Almost surely, 2^7449390785 is an apocalyptic number.

It is an amenable number.

7449390785 is a deficient number, since it is larger than the sum of its proper divisors (1491742591).

7449390785 is a wasteful number, since it uses less digits than its factorization.

7449390785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310743.

The product of its (nonzero) digits is 7620480, while the sum is 56.

The square root of 7449390785 is about 86309.8533482707. The cubic root of 7449390785 is about 1953.0210271129.

The spelling of 7449390785 in words is "seven billion, four hundred forty-nine million, three hundred ninety thousand, seven hundred eighty-five".