2029861405 has 32 divisors (see below), whose sum is σ = 2876404608. Its totient is φ = 1355692800.

The previous prime is 2029861373. The next prime is 2029861423. The reversal of 2029861405 is 5041689202.

It is not a de Polignac number, because 2029861405 - 2⁵ = 2029861373 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 133650 + ... + 148060.

It is an arithmetic number, because the mean of its divisors is an integer number (89887644).

Almost surely, 2^2029861405 is an apocalyptic number.

It is an amenable number.

2029861405 is a deficient number, since it is larger than the sum of its proper divisors (846543203).

2029861405 is a wasteful number, since it uses less digits than its factorization.

2029861405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14637.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2029861405 is about 45053.9832312305. The cubic root of 2029861405 is about 1266.1606006645.

The spelling of 2029861405 in words is "two billion, twenty-nine million, eight hundred sixty-one thousand, four hundred five".