45351720 has 96 divisors (see below), whose sum is σ = 148262400. Its totient is φ = 12022656.

The previous prime is 45351703. The next prime is 45351743. The reversal of 45351720 is 2715354.

It is a happy number.

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, 94441 + ... + 94919.

It is an arithmetic number, because the mean of its divisors is an integer number (1544400).

Almost surely, 2^45351720 is an apocalyptic number.

45351720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45351720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74131200).

45351720 is an abundant number, since it is smaller than the sum of its proper divisors (102910680).

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

45351720 is a wasteful number, since it uses less digits than its factorization.

45351720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759 (or 752 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 45351720 is about 6734.3685672823. The cubic root of 45351720 is about 356.6136158128.

The spelling of 45351720 in words is "forty-five million, three hundred fifty-one thousand, seven hundred twenty".