45618040 has 64 divisors (see below), whose sum is σ = 113571360. Its totient is φ = 16381440.

The previous prime is 45618037. The next prime is 45618061. The reversal of 45618040 is 4081654.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18055 + ... + 20425.

Almost surely, 2^45618040 is an apocalyptic number.

45618040 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 45618040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56785680).

45618040 is an abundant number, since it is smaller than the sum of its proper divisors (67953320).

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

45618040 is a wasteful number, since it uses less digits than its factorization.

45618040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432 (or 2428 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 45618040 is about 6754.1128210891. The cubic root of 45618040 is about 357.3103041085.

Adding to 45618040 its reverse (4081654), we get a palindrome (49699694).

It can be divided in two parts, 456 and 18040, that added together give a square (18496 = 136²).

The spelling of 45618040 in words is "forty-five million, six hundred eighteen thousand, forty".