45047800 has 96 divisors (see below), whose sum is σ = 124992000. Its totient is φ = 14762880.

The previous prime is 45047797. The next prime is 45047813. The reversal of 45047800 is 874054.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31501 + ... + 32899.

It is an arithmetic number, because the mean of its divisors is an integer number (1302000).

Almost surely, 2^45047800 is an apocalyptic number.

45047800 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 45047800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62496000).

45047800 is an abundant number, since it is smaller than the sum of its proper divisors (79944200).

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

45047800 is a wasteful number, since it uses less digits than its factorization.

45047800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445 (or 1436 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 45047800 is about 6711.7657885239. The cubic root of 45047800 is about 355.8152262534.

The spelling of 45047800 in words is "forty-five million, forty-seven thousand, eight hundred".