424161246640 has 40 divisors (see below), whose sum is σ = 993269707920. Its totient is φ = 168443886336.

The previous prime is 424161246611. The next prime is 424161246661. The reversal of 424161246640 is 46642161424.

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

It is a super-2 number, since 2×424161246640² (a number of 24 digits) contains 22 as substring.

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 = 424161246593 and 424161246602.

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, 19060879 + ... + 19083118.

It is an arithmetic number, because the mean of its divisors is an integer number (24831742698).

Almost surely, 2^424161246640 is an apocalyptic number.

424161246640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424161246640 is an abundant number, since it is smaller than the sum of its proper divisors (569108461280).

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

424161246640 is a wasteful number, since it uses less digits than its factorization.

424161246640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38144149 (or 38144143 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 40.

The spelling of 424161246640 in words is "four hundred twenty-four billion, one hundred sixty-one million, two hundred forty-six thousand, six hundred forty".