28373474400 has 288 divisors, whose sum is σ = 94156473600. Its totient is φ = 7419955200.

The previous prime is 28373474341. The next prime is 28373474413. The reversal of 28373474400 is 447437382.

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, 45837291 + ... + 45837909.

It is an arithmetic number, because the mean of its divisors is an integer number (326932200).

Almost surely, 2^28373474400 is an apocalyptic number.

28373474400 is a gapful number since it is divisible by the number (20) 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 28373474400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47078236800).

28373474400 is an abundant number, since it is smaller than the sum of its proper divisors (65782999200).

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

28373474400 is a wasteful number, since it uses less digits than its factorization.

28373474400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982 (or 969 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 28373474400 in words is "twenty-eight billion, three hundred seventy-three million, four hundred seventy-four thousand, four hundred".