45386740 has 72 divisors (see below), whose sum is σ = 114768360. Its totient is φ = 15015168.

The previous prime is 45386729. The next prime is 45386743. The reversal of 45386740 is 4768354.

It can be written as a sum of positive squares in 4 ways, for example, as 1350244 + 44036496 = 1162^2 + 6636^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45386740.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45386743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27622 + ... + 29218.

It is an arithmetic number, because the mean of its divisors is an integer number (1594005).

Almost surely, 2^45386740 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 45386740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57384180).

45386740 is an abundant number, since it is smaller than the sum of its proper divisors (69381620).

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

45386740 is a wasteful number, since it uses less digits than its factorization.

45386740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1640 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 45386740 is about 6736.9681608272. The cubic root of 45386740 is about 356.7053829732.

The spelling of 45386740 in words is "forty-five million, three hundred eighty-six thousand, seven hundred forty".