45638370 has 128 divisors (see below), whose sum is σ = 131777280. Its totient is φ = 11197440.

The previous prime is 45638357. The next prime is 45638393. The reversal of 45638370 is 7383654.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 279909 + ... + 280071.

It is an arithmetic number, because the mean of its divisors is an integer number (1029510).

Almost surely, 2^45638370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45638370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65888640).

45638370 is an abundant number, since it is smaller than the sum of its proper divisors (86138910).

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

45638370 is a wasteful number, since it uses less digits than its factorization.

45638370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 45638370 is about 6755.6176623607. The cubic root of 45638370 is about 357.3633755078.

The spelling of 45638370 in words is "forty-five million, six hundred thirty-eight thousand, three hundred seventy".