40646284240 has 40 divisors (see below), whose sum is σ = 94810494240. Its totient is φ = 16205544576.

The previous prime is 40646284213. The next prime is 40646284271. The reversal of 40646284240 is 4248264604.

It is a happy number.

40646284240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (40).

It is a junction number, because it is equal to n+sod(n) for n = 40646284193 and 40646284202.

It is a congruent number.

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, 802930 + ... + 852049.

It is an arithmetic number, because the mean of its divisors is an integer number (2370262356).

Almost surely, 2^40646284240 is an apocalyptic number.

40646284240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40646284240 is an abundant number, since it is smaller than the sum of its proper divisors (54164210000).

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

40646284240 is a wasteful number, since it uses less digits than its factorization.

40646284240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1655299 (or 1655293 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 40646284240 in words is "forty billion, six hundred forty-six million, two hundred eighty-four thousand, two hundred forty".