13619970 has 96 divisors (see below), whose sum is σ = 43610112. Its totient is φ = 2871936.

The previous prime is 13619953. The next prime is 13619987. The reversal of 13619970 is 7991631.

13619970 = T₈₄ + T₈₅ + ... + T₄₃₄.

13619970 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13619953) and next prime (13619987).

13619970 is strictly pandigital in base 8.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7359 + ... + 9021.

It is an arithmetic number, because the mean of its divisors is an integer number (454272).

Almost surely, 2^13619970 is an apocalyptic number.

13619970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13619970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21805056).

13619970 is an abundant number, since it is smaller than the sum of its proper divisors (29990142).

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

13619970 is a wasteful number, since it uses less digits than its factorization.

13619970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1696 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 13619970 is about 3690.5243529883. The cubic root of 13619970 is about 238.8134138909.

The spelling of 13619970 in words is "thirteen million, six hundred nineteen thousand, nine hundred seventy".