7944294450 has 48 divisors (see below), whose sum is σ = 19736567136. Its totient is φ = 2114745600.

The previous prime is 7944294443. The next prime is 7944294467. The reversal of 7944294450 is 544924497.

It is a super-2 number, since 2×7944294450² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7944294450.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39274 + ... + 132026.

It is an arithmetic number, because the mean of its divisors is an integer number (411178482).

Almost surely, 2^7944294450 is an apocalyptic number.

7944294450 is an abundant number, since it is smaller than the sum of its proper divisors (11792272686).

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

7944294450 is a wasteful number, since it uses less digits than its factorization.

7944294450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93339 (or 93334 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 48.

The square root of 7944294450 is about 89130.7716223752. The cubic root of 7944294450 is about 1995.3470542760.

The spelling of 7944294450 in words is "seven billion, nine hundred forty-four million, two hundred ninety-four thousand, four hundred fifty".