2129499370 has 8 divisors (see below), whose sum is σ = 3833098884. Its totient is φ = 851799744.

The previous prime is 2129499329. The next prime is 2129499371. The reversal of 2129499370 is 739949212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2054174329 + 75325041 = 45323^2 + 8679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2129499370.

It is not an unprimeable number, because it can be changed into a prime (2129499371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106474959 + ... + 106474978.

Almost surely, 2^2129499370 is an apocalyptic number.

2129499370 is a deficient number, since it is larger than the sum of its proper divisors (1703599514).

2129499370 is a wasteful number, since it uses less digits than its factorization.

2129499370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212949944.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 2129499370 is about 46146.4990004659. The cubic root of 2129499370 is about 1286.5475397627.

The spelling of 2129499370 in words is "two billion, one hundred twenty-nine million, four hundred ninety-nine thousand, three hundred seventy".