2009517402 has 64 divisors (see below), whose sum is σ = 4455088128. Its totient is φ = 601440000.

The previous prime is 2009517401. The next prime is 2009517437. The reversal of 2009517402 is 2047159002.

It is a self number, because there is not a number n which added to its sum of digits gives 2009517402.

It is not an unprimeable number, because it can be changed into a prime (2009517401) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 220027 + ... + 228977.

It is an arithmetic number, because the mean of its divisors is an integer number (69610752).

Almost surely, 2^2009517402 is an apocalyptic number.

2009517402 is an abundant number, since it is smaller than the sum of its proper divisors (2445570726).

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

2009517402 is a wasteful number, since it uses less digits than its factorization.

2009517402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9075.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 2009517402 is about 44827.6410487993. The cubic root of 2009517402 is about 1261.9164173017.

The spelling of 2009517402 in words is "two billion, nine million, five hundred seventeen thousand, four hundred two".