2415242640 has 40 divisors (see below), whose sum is σ = 7487252928. Its totient is φ = 644064640.

The previous prime is 2415242639. The next prime is 2415242651. The reversal of 2415242640 is 462425142.

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 (30).

It is a junction number, because it is equal to n+sod(n) for n = 2415242598 and 2415242607.

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, 5031516 + ... + 5031995.

Almost surely, 2^2415242640 is an apocalyptic number.

2415242640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2415242640 is an abundant number, since it is smaller than the sum of its proper divisors (5072010288).

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

2415242640 is a wasteful number, since it uses less digits than its factorization.

2415242640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10063527 (or 10063521 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 2415242640 is about 49145.1181705772. The cubic root of 2415242640 is about 1341.6943444174.

Adding to 2415242640 its reverse (462425142), we get a palindrome (2877667782).

The spelling of 2415242640 in words is "two billion, four hundred fifteen million, two hundred forty-two thousand, six hundred forty".