45500004 has 72 divisors (see below), whose sum is σ = 126977760. Its totient is φ = 13622400.

The previous prime is 45499997. The next prime is 45500009. The reversal of 45500004 is 40000554.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 45500004.

It is not an unprimeable number, because it can be changed into a prime (45500009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34599 + ... + 35889.

It is an arithmetic number, because the mean of its divisors is an integer number (1763580).

Almost surely, 2^45500004 is an apocalyptic number.

45500004 is a gapful number since it is divisible by the number (44) 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 45500004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63488880).

45500004 is an abundant number, since it is smaller than the sum of its proper divisors (81477756).

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

45500004 is a wasteful number, since it uses less digits than its factorization.

45500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 45500004 is about 6745.3690781157. The cubic root of 45500004 is about 357.0018595577.

Adding to 45500004 its reverse (40000554), we get a palindrome (85500558).

The spelling of 45500004 in words is "forty-five million, five hundred thousand, four".