43974900 has 180 divisors, whose sum is σ = 146514060. Its totient is φ = 11404800.

The previous prime is 43974877. The next prime is 43974943. The reversal of 43974900 is 947934.

It can be written as a sum of positive squares in 6 ways, for example, as 14424804 + 29550096 = 3798^2 + 5436^2 .

It is a tau number, because it is divible by the number of its divisors (180).

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 59 ways as a sum of consecutive naturals, for example, 494056 + ... + 494144.

It is an arithmetic number, because the mean of its divisors is an integer number (813967).

Almost surely, 2^43974900 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43974900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73257030).

43974900 is an abundant number, since it is smaller than the sum of its proper divisors (102539160).

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

43974900 is a wasteful number, since it uses less digits than its factorization.

43974900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 43974900 is about 6631.3573271239. The cubic root of 43974900 is about 352.9676906552.

The spelling of 43974900 in words is "forty-three million, nine hundred seventy-four thousand, nine hundred".