3173990400 has 720 divisors, whose sum is σ = 13652042880. Its totient is φ = 707788800.

The previous prime is 3173990311. The next prime is 3173990453. The reversal of 3173990400 is 40993713.

It is a tau number, because it is divible by the number of its divisors (720).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 77414380 + ... + 77414420.

Almost surely, 2^3173990400 is an apocalyptic number.

3173990400 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3173990400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6826021440).

3173990400 is an abundant number, since it is smaller than the sum of its proper divisors (10478052480).

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

3173990400 is an equidigital number, since it uses as much as digits as its factorization.

3173990400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 58 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 3173990400 is about 56338.1788843054. The cubic root of 3173990400 is about 1469.6092255746.

The spelling of 3173990400 in words is "three billion, one hundred seventy-three million, nine hundred ninety thousand, four hundred".