19129090 has 16 divisors (see below), whose sum is σ = 34509888. Its totient is φ = 7634416.

The previous prime is 19129087. The next prime is 19129127. The reversal of 19129090 is 9092191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3129 + ... + 6931.

It is an arithmetic number, because the mean of its divisors is an integer number (2156868).

Almost surely, 2^19129090 is an apocalyptic number.

19129090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19129090 is a deficient number, since it is larger than the sum of its proper divisors (15380798).

19129090 is a wasteful number, since it uses less digits than its factorization.

19129090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4313.

The product of its (nonzero) digits is 1458, while the sum is 31.

The square root of 19129090 is about 4373.6815156113. The cubic root of 19129090 is about 267.4431241352.

The spelling of 19129090 in words is "nineteen million, one hundred twenty-nine thousand, ninety".