3646818480 has 40 divisors (see below), whose sum is σ = 11305138032. Its totient is φ = 972484864.

The previous prime is 3646818473. The next prime is 3646818491. The reversal of 3646818480 is 848186463.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7597299 + ... + 7597778.

Almost surely, 2^3646818480 is an apocalyptic number.

3646818480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3646818480 is an abundant number, since it is smaller than the sum of its proper divisors (7658319552).

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

3646818480 is a wasteful number, since it uses less digits than its factorization.

3646818480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15195093 (or 15195087 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 48.

The square root of 3646818480 is about 60388.8936808748. The cubic root of 3646818480 is about 1539.2342400820.

The spelling of 3646818480 in words is "three billion, six hundred forty-six million, eight hundred eighteen thousand, four hundred eighty".