2029870245 has 32 divisors (see below), whose sum is σ = 3500042112. Its totient is φ = 998629632.

The previous prime is 2029870243. The next prime is 2029870253. The reversal of 2029870245 is 5420789202.

It is not a de Polignac number, because 2029870245 - 2¹ = 2029870243 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2029870243) 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, 387987 + ... + 393183.

It is an arithmetic number, because the mean of its divisors is an integer number (109376316).

Almost surely, 2^2029870245 is an apocalyptic number.

It is an amenable number.

2029870245 is a deficient number, since it is larger than the sum of its proper divisors (1470171867).

2029870245 is a wasteful number, since it uses less digits than its factorization.

2029870245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 2029870245 is about 45054.0813356570. The cubic root of 2029870245 is about 1266.1624386953.

The spelling of 2029870245 in words is "two billion, twenty-nine million, eight hundred seventy thousand, two hundred forty-five".