14919890 has 8 divisors (see below), whose sum is σ = 26855820. Its totient is φ = 5967952.

The previous prime is 14919889. The next prime is 14919899. The reversal of 14919890 is 9891941.

14919890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14417209 + 502681 = 3797^2 + 709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×14919890² = 445206235224200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14919899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745985 + ... + 746004.

Almost surely, 2^14919890 is an apocalyptic number.

14919890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

14919890 is a deficient number, since it is larger than the sum of its proper divisors (11935930).

14919890 is a wasteful number, since it uses less digits than its factorization.

14919890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491996.

The product of its (nonzero) digits is 23328, while the sum is 41.

The square root of 14919890 is about 3862.6273441791. The cubic root of 14919890 is about 246.1813829621.

The spelling of 14919890 in words is "fourteen million, nine hundred nineteen thousand, eight hundred ninety".