2129535490 has 16 divisors (see below), whose sum is σ = 3926656440. Its totient is φ = 831038080.

The previous prime is 2129535469. The next prime is 2129535509. The reversal of 2129535490 is 945359212.

It can be written as a sum of positive squares in 4 ways, for example, as 987027889 + 1142507601 = 31417^2 + 33801^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2596585 + ... + 2597404.

Almost surely, 2^2129535490 is an apocalyptic number.

2129535490 is a deficient number, since it is larger than the sum of its proper divisors (1797120950).

2129535490 is a wasteful number, since it uses less digits than its factorization.

2129535490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194037.

The product of its (nonzero) digits is 97200, while the sum is 40.

The square root of 2129535490 is about 46146.8903611067. The cubic root of 2129535490 is about 1286.5548137469.

The spelling of 2129535490 in words is "two billion, one hundred twenty-nine million, five hundred thirty-five thousand, four hundred ninety".