45455280 has 160 divisors (see below), whose sum is σ = 160864704. Its totient is φ = 10518528.

The previous prime is 45455243. The next prime is 45455287. The reversal of 45455280 is 8255454.

45455280 = T₂₃₀₄ + T₂₃₀₅ + ... + T₂₃₂₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45455287) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52612 + ... + 53468.

Almost surely, 2^45455280 is an apocalyptic number.

45455280 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 45455280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80432352).

45455280 is an abundant number, since it is smaller than the sum of its proper divisors (115409424).

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

45455280 is a wasteful number, since it uses less digits than its factorization.

45455280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903 (or 897 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 33.

The square root of 45455280 is about 6742.0530997612. The cubic root of 45455280 is about 356.8848501508.

The spelling of 45455280 in words is "forty-five million, four hundred fifty-five thousand, two hundred eighty".