1648840029 has 16 divisors (see below), whose sum is σ = 2243142144. Its totient is φ = 1077073200.

The previous prime is 1648840027. The next prime is 1648840079. The reversal of 1648840029 is 9200488461.

It is not a de Polignac number, because 1648840029 - 2¹ = 1648840027 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648840021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10974 + ... + 58464.

It is an arithmetic number, because the mean of its divisors is an integer number (140196384).

Almost surely, 2^1648840029 is an apocalyptic number.

It is an amenable number.

1648840029 is a deficient number, since it is larger than the sum of its proper divisors (594302115).

1648840029 is a wasteful number, since it uses less digits than its factorization.

1648840029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47728.

The product of its (nonzero) digits is 110592, while the sum is 42.

The square root of 1648840029 is about 40605.9112568601. The cubic root of 1648840029 is about 1181.3887768647.

The spelling of 1648840029 in words is "one billion, six hundred forty-eight million, eight hundred forty thousand, twenty-nine".