1648790330 has 16 divisors (see below), whose sum is σ = 3237624864. Its totient is φ = 599560080.

The previous prime is 1648790309. The next prime is 1648790333. The reversal of 1648790330 is 330978461.

It is not an unprimeable number, because it can be changed into a prime (1648790333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7494392 + ... + 7494611.

It is an arithmetic number, because the mean of its divisors is an integer number (202351554).

Almost surely, 2^1648790330 is an apocalyptic number.

1648790330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1648790330 is a deficient number, since it is larger than the sum of its proper divisors (1588834534).

1648790330 is a wasteful number, since it uses less digits than its factorization.

1648790330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14989021.

The product of its (nonzero) digits is 108864, while the sum is 41.

The square root of 1648790330 is about 40605.2992846993. The cubic root of 1648790330 is about 1181.3769070189.

The spelling of 1648790330 in words is "one billion, six hundred forty-eight million, seven hundred ninety thousand, three hundred thirty".