20240394 has 16 divisors (see below), whose sum is σ = 40660320. Its totient is φ = 6716880.

The previous prime is 20240383. The next prime is 20240399. The reversal of 20240394 is 49304202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20240399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5992 + ... + 8739.

It is an arithmetic number, because the mean of its divisors is an integer number (2541270).

Almost surely, 2^20240394 is an apocalyptic number.

20240394 is an abundant number, since it is smaller than the sum of its proper divisors (20419926).

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

20240394 is a wasteful number, since it uses less digits than its factorization.

20240394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14965.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 20240394 is about 4498.9325400588. The cubic root of 20240394 is about 272.5249826996.

Adding to 20240394 its reverse (49304202), we get a palindrome (69544596).

The spelling of 20240394 in words is "twenty million, two hundred forty thousand, three hundred ninety-four".