7420545450 has 36 divisors (see below), whose sum is σ = 19936533318. Its totient is φ = 1978812000.

The previous prime is 7420545449. The next prime is 7420545467. The reversal of 7420545450 is 545450247.

It is a happy number.

7420545450 is a `hidden beast` number, since 74 + 2 + 0 + 545 + 45 + 0 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 4802074209 + 2618471241 = 69297^2 + 51171^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8244601 + ... + 8245500.

Almost surely, 2^7420545450 is an apocalyptic number.

7420545450 is an abundant number, since it is smaller than the sum of its proper divisors (12515987868).

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

7420545450 is a wasteful number, since it uses less digits than its factorization.

7420545450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16490119 (or 16490111 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 36.

The square root of 7420545450 is about 86142.5878993660. The cubic root of 7420545450 is about 1950.4969542091.

Adding to 7420545450 its reverse (545450247), we get a palindrome (7965995697).

The spelling of 7420545450 in words is "seven billion, four hundred twenty million, five hundred forty-five thousand, four hundred fifty".