1673653020 has 48 divisors (see below), whose sum is σ = 5046709920. Its totient is φ = 411975936.

The previous prime is 1673653001. The next prime is 1673653021. The reversal of 1673653020 is 203563761.

It is a super-2 number, since 2×1673653020² = 5602228862710240800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1673653021) 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, 1072075 + ... + 1073634.

It is an arithmetic number, because the mean of its divisors is an integer number (105139790).

Almost surely, 2^1673653020 is an apocalyptic number.

1673653020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1673653020 is an abundant number, since it is smaller than the sum of its proper divisors (3373056900).

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

1673653020 is a wasteful number, since it uses less digits than its factorization.

1673653020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2145734 (or 2145732 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 1673653020 is about 40910.3045698758. The cubic root of 1673653020 is about 1187.2854396469.

The spelling of 1673653020 in words is "one billion, six hundred seventy-three million, six hundred fifty-three thousand, twenty".