45721266 has 16 divisors (see below), whose sum is σ = 91705824. Its totient is φ = 15196544.

The previous prime is 45721261. The next prime is 45721267. The reversal of 45721266 is 66212754.

It is not an unprimeable number, because it can be changed into a prime (45721261) 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, 8676 + ... + 12911.

It is an arithmetic number, because the mean of its divisors is an integer number (5731614).

Almost surely, 2^45721266 is an apocalyptic number.

45721266 is an abundant number, since it is smaller than the sum of its proper divisors (45984558).

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

45721266 is a wasteful number, since it uses less digits than its factorization.

45721266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21945.

The product of its digits is 20160, while the sum is 33.

The square root of 45721266 is about 6761.7502172145. The cubic root of 45721266 is about 357.5796122435.

The spelling of 45721266 in words is "forty-five million, seven hundred twenty-one thousand, two hundred sixty-six".