20240402 has 16 divisors (see below), whose sum is σ = 37367232. Its totient is φ = 8007120.

The previous prime is 20240399. The next prime is 20240411. The reversal of 20240402 is 20404202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 55424 + ... + 55787.

It is an arithmetic number, because the mean of its divisors is an integer number (2335452).

Almost surely, 2^20240402 is an apocalyptic number.

20240402 is a deficient number, since it is larger than the sum of its proper divisors (17126830).

20240402 is a wasteful number, since it uses less digits than its factorization.

20240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111233.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 20240402 is about 4498.9334291585. The cubic root of 20240402 is about 272.5250186047.

Adding to 20240402 its reverse (20404202), we get a palindrome (40644604).

It can be divided in two parts, 202 and 40402, that added together give a palindrome (40604).

The spelling of 20240402 in words is "twenty million, two hundred forty thousand, four hundred two".