8461005240 has 32 divisors (see below), whose sum is σ = 25383016080. Its totient is φ = 2256268032.

The previous prime is 8461005211. The next prime is 8461005251. The reversal of 8461005240 is 425001648.

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 = 8461005198 and 8461005207.

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, 35254069 + ... + 35254308.

Almost surely, 2^8461005240 is an apocalyptic number.

It is an amenable number.

8461005240 is an abundant number, since it is smaller than the sum of its proper divisors (16922010840).

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

8461005240 is a wasteful number, since it uses less digits than its factorization.

8461005240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70508391 (or 70508387 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 8461005240 is about 91983.7226904848. The cubic root of 8461005240 is about 2037.7019200441.

Adding to 8461005240 its reverse (425001648), we get a palindrome (8886006888).

The spelling of 8461005240 in words is "eight billion, four hundred sixty-one million, five thousand, two hundred forty".