4661405040 has 80 divisors (see below), whose sum is σ = 14840934048. Its totient is φ = 1209443328.

The previous prime is 4661405017. The next prime is 4661405069. The reversal of 4661405040 is 405041664.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 4661404989 and 4661405007.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 253587 + ... + 271346.

Almost surely, 2^4661405040 is an apocalyptic number.

4661405040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4661405040 is an abundant number, since it is smaller than the sum of its proper divisors (10179529008).

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

4661405040 is a wasteful number, since it uses less digits than its factorization.

4661405040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524986 (or 524980 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 4661405040 is about 68274.4830811629. The cubic root of 4661405040 is about 1670.4710254165.

The spelling of 4661405040 in words is "four billion, six hundred sixty-one million, four hundred five thousand, forty".