43740090 has 48 divisors (see below), whose sum is σ = 119714400. Its totient is φ = 11049696.

The previous prime is 43740077. The next prime is 43740121. The reversal of 43740090 is 9004734.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11080 + ... + 14499.

It is an arithmetic number, because the mean of its divisors is an integer number (2494050).

Almost surely, 2^43740090 is an apocalyptic number.

43740090 is an abundant number, since it is smaller than the sum of its proper divisors (75974310).

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

43740090 is a wasteful number, since it uses less digits than its factorization.

43740090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25611 (or 25608 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 43740090 is about 6613.6291096493. The cubic root of 43740090 is about 352.3383293635.

The spelling of 43740090 in words is "forty-three million, seven hundred forty thousand, ninety".