1673605730 has 32 divisors (see below), whose sum is σ = 3062888640. Its totient is φ = 658278720.

The previous prime is 1673605723. The next prime is 1673605733. The reversal of 1673605730 is 375063761.

It is a super-2 number, since 2×1673605730² = 5601912278977665800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1673605733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440981 + ... + 444759.

It is an arithmetic number, because the mean of its divisors is an integer number (95715270).

Almost surely, 2^1673605730 is an apocalyptic number.

1673605730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1673605730 is a deficient number, since it is larger than the sum of its proper divisors (1389282910).

1673605730 is a wasteful number, since it uses less digits than its factorization.

1673605730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514.

The product of its (nonzero) digits is 79380, while the sum is 38.

The square root of 1673605730 is about 40909.7265940510. The cubic root of 1673605730 is about 1187.2742570707.

The spelling of 1673605730 in words is "one billion, six hundred seventy-three million, six hundred five thousand, seven hundred thirty".