1673521230 has 16 divisors (see below), whose sum is σ = 4016451024. Its totient is φ = 446272320.

The previous prime is 1673521177. The next prime is 1673521271. The reversal of 1673521230 is 321253761.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 55784041 = 1673521230 / (1 + 6 + 7 + 3 + 5 + 2 + 1 + 2 + 3 + 0).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27891991 + ... + 27892050.

It is an arithmetic number, because the mean of its divisors is an integer number (251028189).

Almost surely, 2^1673521230 is an apocalyptic number.

1673521230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1673521230 is an abundant number, since it is smaller than the sum of its proper divisors (2342929794).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1673521230 is a wasteful number, since it uses less digits than its factorization.

1673521230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55784051.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 1673521230 is about 40908.6938192849. The cubic root of 1673521230 is about 1187.2542749922.

Adding to 1673521230 its reverse (321253761), we get a palindrome (1994774991).

The spelling of 1673521230 in words is "one billion, six hundred seventy-three million, five hundred twenty-one thousand, two hundred thirty".