45202420 has 24 divisors (see below), whose sum is σ = 95180904. Its totient is φ = 18032256.

The previous prime is 45202411. The next prime is 45202427. The reversal of 45202420 is 2420254.

It can be written as a sum of positive squares in 4 ways, for example, as 1695204 + 43507216 = 1302^2 + 6596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45202427) 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, 5094 + ... + 10786.

It is an arithmetic number, because the mean of its divisors is an integer number (3965871).

Almost surely, 2^45202420 is an apocalyptic number.

It is an amenable number.

45202420 is an abundant number, since it is smaller than the sum of its proper divisors (49978484).

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

45202420 is a wasteful number, since it uses less digits than its factorization.

45202420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099 (or 6097 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 45202420 is about 6723.2744998252. The cubic root of 45202420 is about 356.2218559894.

Adding to 45202420 its reverse (2420254), we get a palindrome (47622674).

The spelling of 45202420 in words is "forty-five million, two hundred two thousand, four hundred twenty".