1645325230 has 16 divisors (see below), whose sum is σ = 2962602720. Its totient is φ = 657904032.

The previous prime is 1645325207. The next prime is 1645325233. The reversal of 1645325230 is 325235461.

It is a happy number.

It is a super-2 number, since 2×1645325230² = 5414190224949105800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1645325192 and 1645325201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1645325233) 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, 4072 + ... + 57508.

It is an arithmetic number, because the mean of its divisors is an integer number (185162670).

Almost surely, 2^1645325230 is an apocalyptic number.

1645325230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1645325230 is a deficient number, since it is larger than the sum of its proper divisors (1317277490).

1645325230 is a wasteful number, since it uses less digits than its factorization.

1645325230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56523.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 1645325230 is about 40562.6087671885. The cubic root of 1645325230 is about 1180.5487321450.

The spelling of 1645325230 in words is "one billion, six hundred forty-five million, three hundred twenty-five thousand, two hundred thirty".