20148434 has 8 divisors (see below), whose sum is σ = 32000508. Its totient is φ = 9481600.

The previous prime is 20148433. The next prime is 20148449. The reversal of 20148434 is 43484102.

It can be written as a sum of positive squares in 2 ways, for example, as 19829209 + 319225 = 4453^2 + 565^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20148431) 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, 296267 + ... + 296334.

Almost surely, 2^20148434 is an apocalyptic number.

20148434 is a deficient number, since it is larger than the sum of its proper divisors (11852074).

20148434 is a wasteful number, since it uses less digits than its factorization.

20148434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592620.

The product of its (nonzero) digits is 3072, while the sum is 26.

The square root of 20148434 is about 4488.7007028761. The cubic root of 20148434 is about 272.1116269769. Note that the first 3 decimals are identical.

The spelling of 20148434 in words is "twenty million, one hundred forty-eight thousand, four hundred thirty-four".