2006642450 has 12 divisors (see below), whose sum is σ = 3732355050. Its totient is φ = 802656960.

The previous prime is 2006642419. The next prime is 2006642461. The reversal of 2006642450 is 542466002.

It can be written as a sum of positive squares in 3 ways, for example, as 1752845689 + 253796761 = 41867^2 + 15931^2 .

It is a super-2 number, since 2×2006642450² = 8053227844284005000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20066375 + ... + 20066474.

Almost surely, 2^2006642450 is an apocalyptic number.

2006642450 is a deficient number, since it is larger than the sum of its proper divisors (1725712600).

2006642450 is a wasteful number, since it uses less digits than its factorization.

2006642450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40132861 (or 40132856 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2006642450 is about 44795.5628382991. The cubic root of 2006642450 is about 1261.3143356559.

The spelling of 2006642450 in words is "two billion, six million, six hundred forty-two thousand, four hundred fifty".