45270540 has 288 divisors, whose sum is σ = 173322240. Its totient is φ = 9331200.

The previous prime is 45270517. The next prime is 45270553. The reversal of 45270540 is 4507254.

45270540 is a `hidden beast` number, since 4 + 52 + 70 + 540 = 666.

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 95 ways as a sum of consecutive naturals, for example, 742110 + ... + 742170.

Almost surely, 2^45270540 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 45270540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86661120).

45270540 is an abundant number, since it is smaller than the sum of its proper divisors (128051700).

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

45270540 is a wasteful number, since it uses less digits than its factorization.

45270540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 128 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 45270540 is about 6728.3385764987. The cubic root of 45270540 is about 356.4007081652.

Adding to 45270540 its reverse (4507254), we get a palindrome (49777794).

The spelling of 45270540 in words is "forty-five million, two hundred seventy thousand, five hundred forty".