45780000 has 240 divisors, whose sum is σ = 173194560. Its totient is φ = 10368000.

The previous prime is 45779999. The next prime is 45780001. The reversal of 45780000 is 8754.

It is an interprime number because it is at equal distance from previous prime (45779999) and next prime (45780001).

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (45780001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 419946 + ... + 420054.

It is an arithmetic number, because the mean of its divisors is an integer number (721644).

Almost surely, 2^45780000 is an apocalyptic number.

45780000 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 45780000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86597280).

45780000 is an abundant number, since it is smaller than the sum of its proper divisors (127414560).

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

45780000 is a wasteful number, since it uses less digits than its factorization.

45780000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149 (or 126 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 45780000 is about 6766.0919296149. The cubic root of 45780000 is about 357.7326635187.

Adding to 45780000 its reverse (8754), we get a palindrome (45788754).

The spelling of 45780000 in words is "forty-five million, seven hundred eighty thousand".