45372740 has 48 divisors (see below), whose sum is σ = 111441792. Its totient is φ = 15192576.

The previous prime is 45372739. The next prime is 45372751. The reversal of 45372740 is 4727354.

It is a junction number, because it is equal to n+sod(n) for n = 45372697 and 45372706.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2252 + ... + 9788.

It is an arithmetic number, because the mean of its divisors is an integer number (2321704).

Almost surely, 2^45372740 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 45372740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55720896).

45372740 is an abundant number, since it is smaller than the sum of its proper divisors (66069052).

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

45372740 is a wasteful number, since it uses less digits than its factorization.

45372740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7596 (or 7594 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 45372740 is about 6735.9290376310. The cubic root of 45372740 is about 356.6687027378.

The spelling of 45372740 in words is "forty-five million, three hundred seventy-two thousand, seven hundred forty".