45594640 has 80 divisors (see below), whose sum is σ = 130491648. Its totient is φ = 14427648.

The previous prime is 45594631. The next prime is 45594643. The reversal of 45594640 is 4649554.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 45594640.

It is not an unprimeable number, because it can be changed into a prime (45594643) 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, 4149 + ... + 10411.

Almost surely, 2^45594640 is an apocalyptic number.

45594640 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 45594640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65245824).

45594640 is an abundant number, since it is smaller than the sum of its proper divisors (84897008).

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

45594640 is a wasteful number, since it uses less digits than its factorization.

45594640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6296 (or 6290 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 45594640 is about 6752.3803210424. The cubic root of 45594640 is about 357.2491989614.

The spelling of 45594640 in words is "forty-five million, five hundred ninety-four thousand, six hundred forty".