1773949920 has 48 divisors (see below), whose sum is σ = 5587943760. Its totient is φ = 473053184.

The previous prime is 1773949913. The next prime is 1773949937. The reversal of 1773949920 is 299493771.

1773949920 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×1773949920³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1847385 + ... + 1848344.

It is an arithmetic number, because the mean of its divisors is an integer number (116415495).

Almost surely, 2^1773949920 is an apocalyptic number.

1773949920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1773949920 is an abundant number, since it is smaller than the sum of its proper divisors (3813993840).

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

1773949920 is a wasteful number, since it uses less digits than its factorization.

1773949920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695747 (or 3695739 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 1773949920 is about 42118.2848653646. The cubic root of 1773949920 is about 1210.5436438763.

The spelling of 1773949920 in words is "one billion, seven hundred seventy-three million, nine hundred forty-nine thousand, nine hundred twenty".