1513668 has 48 divisors (see below), whose sum is σ = 3938816. Its totient is φ = 449280.

The previous prime is 1513667. The next prime is 1513669. The reversal of 1513668 is 8663151.

It is an interprime number because it is at equal distance from previous prime (1513667) and next prime (1513669).

It is not an unprimeable number, because it can be changed into a prime (1513661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4680 + ... + 4992.

2^1513668 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1513668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1969408).

1513668 is an abundant number, since it is smaller than the sum of its proper divisors (2425148).

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

1513668 is a wasteful number, since it uses less digits than its factorization.

1513668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 362 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 1513668 is about 1230.3121555118. The cubic root of 1513668 is about 114.8180613976.

The spelling of 1513668 in words is "one million, five hundred thirteen thousand, six hundred sixty-eight".