8402125450 has 24 divisors (see below), whose sum is σ = 15789075372. Its totient is φ = 3326200320.

The previous prime is 8402125447. The next prime is 8402125493. The reversal of 8402125450 is 545212048.

It can be written as a sum of positive squares in 6 ways, for example, as 1583164521 + 6818960929 = 39789^2 + 82577^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861349 + ... + 871048.

Almost surely, 2^8402125450 is an apocalyptic number.

8402125450 is a deficient number, since it is larger than the sum of its proper divisors (7386949922).

8402125450 is a wasteful number, since it uses less digits than its factorization.

8402125450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732506 (or 1732501 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 8402125450 is about 91663.1084460919. The cubic root of 8402125450 is about 2032.9641515230.

Adding to 8402125450 its reverse (545212048), we get a palindrome (8947337498).

The spelling of 8402125450 in words is "eight billion, four hundred two million, one hundred twenty-five thousand, four hundred fifty".