45020000 has 60 divisors (see below), whose sum is σ = 110805156. Its totient is φ = 18000000.

The previous prime is 45019973. The next prime is 45020021. The reversal of 45020000 is 2054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 18875 + ... + 21125.

Almost surely, 2^45020000 is an apocalyptic number.

45020000 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 45020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55402578).

45020000 is an abundant number, since it is smaller than the sum of its proper divisors (65785156).

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

45020000 is an equidigital number, since it uses as much as digits as its factorization.

45020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 45020000 is about 6709.6944788865. The cubic root of 45020000 is about 355.7420173599.

Adding to 45020000 its reverse (2054), we get a palindrome (45022054).

It can be divided in two parts, 450 and 20000, that multiplied together give a square (9000000 = 3000²).

The spelling of 45020000 in words is "forty-five million, twenty thousand".