45649800 has 144 divisors (see below), whose sum is σ = 175256640. Its totient is φ = 10431360.

The previous prime is 45649787. The next prime is 45649817. The reversal of 45649800 is 894654.

45649800 is a `hidden beast` number, since 4 + 5 + 649 + 8 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10789 + ... + 14411.

It is an arithmetic number, because the mean of its divisors is an integer number (1217060).

Almost surely, 2^45649800 is an apocalyptic number.

45649800 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 45649800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87628320).

45649800 is an abundant number, since it is smaller than the sum of its proper divisors (129606840).

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

45649800 is a wasteful number, since it uses less digits than its factorization.

45649800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3652 (or 3640 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 45649800 is about 6756.4635720175. The cubic root of 45649800 is about 357.3932065647.

The spelling of 45649800 in words is "forty-five million, six hundred forty-nine thousand, eight hundred".