2009139410 has 16 divisors (see below), whose sum is σ = 3618919512. Its totient is φ = 803107200.

The previous prime is 2009139397. The next prime is 2009139413. The reversal of 2009139410 is 149319002.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1180678321 + 828461089 = 34361^2 + 28783^2 .

It is not an unprimeable number, because it can be changed into a prime (2009139413) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53021 + ... + 82640.

Almost surely, 2^2009139410 is an apocalyptic number.

2009139410 is a deficient number, since it is larger than the sum of its proper divisors (1609780102).

2009139410 is a wasteful number, since it uses less digits than its factorization.

2009139410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137149.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 2009139410 is about 44823.4247910621. The cubic root of 2009139410 is about 1261.8372898089.

The spelling of 2009139410 in words is "two billion, nine million, one hundred thirty-nine thousand, four hundred ten".