45847040 has 40 divisors (see below), whose sum is σ = 109931580. Its totient is φ = 18337792.

The previous prime is 45847037. The next prime is 45847049. The reversal of 45847040 is 4074854.

It can be written as a sum of positive squares in 2 ways, for example, as 45373696 + 473344 = 6736^2 + 688^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 45846988 and 45847006.

It is not an unprimeable number, because it can be changed into a prime (45847049) 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, 6395 + ... + 11514.

Almost surely, 2^45847040 is an apocalyptic number.

45847040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45847040 is an abundant number, since it is smaller than the sum of its proper divisors (64084540).

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

45847040 is an equidigital number, since it uses as much as digits as its factorization.

45847040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17932 (or 17916 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 45847040 is about 6771.0442326129. The cubic root of 45847040 is about 357.9071989833.

The spelling of 45847040 in words is "forty-five million, eight hundred forty-seven thousand, forty".