45004140 has 48 divisors (see below), whose sum is σ = 140014560. Its totient is φ = 12000960.

The previous prime is 45004121. The next prime is 45004147. The reversal of 45004140 is 4140054.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (45004147) 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, 41131 + ... + 42210.

It is an arithmetic number, because the mean of its divisors is an integer number (2916970).

Almost surely, 2^45004140 is an apocalyptic number.

It is an amenable number.

45004140 is an abundant number, since it is smaller than the sum of its proper divisors (95010420).

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

45004140 is a wasteful number, since it uses less digits than its factorization.

45004140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83359 (or 83351 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 45004140 is about 6708.5125027833. The cubic root of 45004140 is about 355.7002379207.

Adding to 45004140 its reverse (4140054), we get a palindrome (49144194).

The spelling of 45004140 in words is "forty-five million, four thousand, one hundred forty".