3894480 has 100 divisors (see below), whose sum is σ = 13548612. Its totient is φ = 1036800.

The previous prime is 3894469. The next prime is 3894481. The reversal of 3894480 is 844983.

It can be written as a sum of positive squares in 2 ways, for example, as 2396304 + 1498176 = 1548^2 + 1224^2 .

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3894481) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6180 + ... + 6780.

Almost surely, 2^3894480 is an apocalyptic number.

3894480 is a gapful number since it is divisible by the number (30) 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 3894480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6774306).

3894480 is an abundant number, since it is smaller than the sum of its proper divisors (9654132).

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

3894480 is a wasteful number, since it uses less digits than its factorization.

3894480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 3894480 is about 1973.4436906079. The cubic root of 3894480 is about 157.3317932116.

The spelling of 3894480 in words is "three million, eight hundred ninety-four thousand, four hundred eighty".