1649069234 has 32 divisors (see below), whose sum is σ = 2555193600. Its totient is φ = 797887440.

The previous prime is 1649069231. The next prime is 1649069269. The reversal of 1649069234 is 4329609461.

It is a happy number.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1649069231) 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, 2663777 + ... + 2664395.

It is an arithmetic number, because the mean of its divisors is an integer number (79849800).

Almost surely, 2^1649069234 is an apocalyptic number.

1649069234 is a deficient number, since it is larger than the sum of its proper divisors (906124366).

1649069234 is a wasteful number, since it uses less digits than its factorization.

1649069234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 279936, while the sum is 44.

The square root of 1649069234 is about 40608.7334695383. The cubic root of 1649069234 is about 1181.4435158860.

The spelling of 1649069234 in words is "one billion, six hundred forty-nine million, sixty-nine thousand, two hundred thirty-four".