1000421650 has 24 divisors (see below), whose sum is σ = 1862129700. Its totient is φ = 399879360.

The previous prime is 1000421629. The next prime is 1000421699. The reversal of 1000421650 is 561240001.

It can be written as a sum of positive squares in 6 ways, for example, as 304886521 + 695535129 = 17461^2 + 26373^2 .

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, 70992 + ... + 83908.

Almost surely, 2^1000421650 is an apocalyptic number.

1000421650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1000421650 is a deficient number, since it is larger than the sum of its proper divisors (861708050).

1000421650 is a wasteful number, since it uses less digits than its factorization.

1000421650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14478 (or 14473 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1000421650 is about 31629.4427709373. The cubic root of 1000421650 is about 1000.1405302503.

Adding to 1000421650 its reverse (561240001), we get a palindrome (1561661651).

The spelling of 1000421650 in words is "one billion, four hundred twenty-one thousand, six hundred fifty".