45391008 has 96 divisors (see below), whose sum is σ = 131918976. Its totient is φ = 13575168.

The previous prime is 45391007. The next prime is 45391013. The reversal of 45391008 is 80019354.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (45391007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45685 + ... + 46667.

It is an arithmetic number, because the mean of its divisors is an integer number (1374156).

Almost surely, 2^45391008 is an apocalyptic number.

45391008 is a gapful number since it is divisible by the number (48) 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 45391008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65959488).

45391008 is an abundant number, since it is smaller than the sum of its proper divisors (86527968).

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

45391008 is a wasteful number, since it uses less digits than its factorization.

45391008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 45391008 is about 6737.2849130789. The cubic root of 45391008 is about 356.7165637046.

The spelling of 45391008 in words is "forty-five million, three hundred ninety-one thousand, eight".