45214890 has 32 divisors (see below), whose sum is σ = 124018560. Its totient is φ = 10334784.

The previous prime is 45214877. The next prime is 45214891. The reversal of 45214890 is 9841254.

It is not an unprimeable number, because it can be changed into a prime (45214891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107445 + ... + 107864.

It is an arithmetic number, because the mean of its divisors is an integer number (3875580).

Almost surely, 2^45214890 is an apocalyptic number.

45214890 is an abundant number, since it is smaller than the sum of its proper divisors (78803670).

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

45214890 is a wasteful number, since it uses less digits than its factorization.

45214890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215326.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 45214890 is about 6724.2018113677. The cubic root of 45214890 is about 356.2546099742.

The spelling of 45214890 in words is "forty-five million, two hundred fourteen thousand, eight hundred ninety".