45297720 has 96 divisors (see below), whose sum is σ = 158558400. Its totient is φ = 11149056.

The previous prime is 45297713. The next prime is 45297779. The reversal of 45297720 is 2779254.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 160 + ... + 9519.

It is an arithmetic number, because the mean of its divisors is an integer number (1651650).

Almost surely, 2^45297720 is an apocalyptic number.

45297720 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 45297720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79279200).

45297720 is an abundant number, since it is smaller than the sum of its proper divisors (113260680).

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

45297720 is a wasteful number, since it uses less digits than its factorization.

45297720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9709 (or 9702 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 45297720 is about 6730.3580885418. The cubic root of 45297720 is about 356.4720204228.

The spelling of 45297720 in words is "forty-five million, two hundred ninety-seven thousand, seven hundred twenty".