1315650420 has 72 divisors (see below), whose sum is σ = 4560925824. Its totient is φ = 300719808.

The previous prime is 1315650409. The next prime is 1315650431. The reversal of 1315650420 is 240565131.

1315650420 is a `hidden beast` number, since 1 + 3 + 1 + 5 + 650 + 4 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (1315650409) and next prime (1315650431).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 520824 + ... + 523343.

It is an arithmetic number, because the mean of its divisors is an integer number (63346192).

Almost surely, 2^1315650420 is an apocalyptic number.

1315650420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315650420 is an abundant number, since it is smaller than the sum of its proper divisors (3245275404).

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

1315650420 is a wasteful number, since it uses less digits than its factorization.

1315650420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044189 (or 1044184 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1315650420 is about 36271.8957320954. The cubic root of 1315650420 is about 1095.7551056104.

The spelling of 1315650420 in words is "one billion, three hundred fifteen million, six hundred fifty thousand, four hundred twenty".