45351808 has 32 divisors (see below), whose sum is σ = 91035000. Its totient is φ = 22503936.

The previous prime is 45351769. The next prime is 45351809. The reversal of 45351808 is 80815354.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45351809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16518 + ... + 19066.

Almost surely, 2^45351808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45351808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45517500).

45351808 is an abundant number, since it is smaller than the sum of its proper divisors (45683192).

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

45351808 is a wasteful number, since it uses less digits than its factorization.

45351808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702 (or 2690 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 45351808 is about 6734.3751009281. The cubic root of 45351808 is about 356.6138464690.

The spelling of 45351808 in words is "forty-five million, three hundred fifty-one thousand, eight hundred eight".