45245420 has 24 divisors (see below), whose sum is σ = 103653648. Its totient is φ = 16452800.

The previous prime is 45245419. The next prime is 45245429. The reversal of 45245420 is 2454254.

It is a self number, because there is not a number n which added to its sum of digits gives 45245420.

It is not an unprimeable number, because it can be changed into a prime (45245429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102611 + ... + 103050.

It is an arithmetic number, because the mean of its divisors is an integer number (4318902).

Almost surely, 2^45245420 is an apocalyptic number.

It is an amenable number.

45245420 is an abundant number, since it is smaller than the sum of its proper divisors (58408228).

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

45245420 is a wasteful number, since it uses less digits than its factorization.

45245420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205681 (or 205679 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 26.

The square root of 45245420 is about 6726.4715862033. The cubic root of 45245420 is about 356.3347753516.

Adding to 45245420 its reverse (2454254), we get a palindrome (47699674).

The spelling of 45245420 in words is "forty-five million, two hundred forty-five thousand, four hundred twenty".