1315409490 has 64 divisors (see below), whose sum is σ = 3565307520. Its totient is φ = 345021120.

The previous prime is 1315409489. The next prime is 1315409497. The reversal of 1315409490 is 949045131.

It is a happy number.

1315409490 is a `hidden beast` number, since 13 + 154 + 0 + 9 + 490 = 666.

It is not an unprimeable number, because it can be changed into a prime (1315409497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23464 + ... + 56403.

It is an arithmetic number, because the mean of its divisors is an integer number (55707930).

Almost surely, 2^1315409490 is an apocalyptic number.

1315409490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1315409490 is an abundant number, since it is smaller than the sum of its proper divisors (2249898030).

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

1315409490 is a wasteful number, since it uses less digits than its factorization.

1315409490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79944 (or 79938 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 1315409490 is about 36268.5744136711. The cubic root of 1315409490 is about 1095.6882143880.

The spelling of 1315409490 in words is "one billion, three hundred fifteen million, four hundred nine thousand, four hundred ninety".