20240146 has 4 divisors (see below), whose sum is σ = 30360222. Its totient is φ = 10120072.

The previous prime is 20240141. The next prime is 20240153. The reversal of 20240146 is 64104202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19456921 + 783225 = 4411^2 + 885^2 .

It is not an unprimeable number, because it can be changed into a prime (20240141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060035 + ... + 5060038.

Almost surely, 2^20240146 is an apocalyptic number.

20240146 is a deficient number, since it is larger than the sum of its proper divisors (10120076).

20240146 is a wasteful number, since it uses less digits than its factorization.

20240146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10120075.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20240146 is about 4498.9049778807. The cubic root of 20240146 is about 272.5238696370.

Adding to 20240146 its reverse (64104202), we get a palindrome (84344348).

The spelling of 20240146 in words is "twenty million, two hundred forty thousand, one hundred forty-six".