3646232029440 has 3456 divisors, whose sum is σ = 17999235072000. Its totient is φ = 696450908160.

The previous prime is 3646232029399. The next prime is 3646232029511. The reversal of 3646232029440 is 449202326463.

3646232029440 is a `hidden beast` number, since 36 + 4 + 6 + 2 + 320 + 294 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (3456).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 15256200841 + ... + 15256201079.

It is an arithmetic number, because the mean of its divisors is an integer number (5208112000).

Almost surely, 2^{3646232029440} is an apocalyptic number.

3646232029440 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 3646232029440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8999617536000).

3646232029440 is an abundant number, since it is smaller than the sum of its proper divisors (14353003042560).

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

3646232029440 is a wasteful number, since it uses less digits than its factorization.

3646232029440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 280 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 45.

The spelling of 3646232029440 in words is "three trillion, six hundred forty-six billion, two hundred thirty-two million, twenty-nine thousand, four hundred forty".