2040400206402 has 16 divisors (see below), whose sum is σ = 4080989484480. Its totient is φ = 680101890192.

The previous prime is 2040400206343. The next prime is 2040400206479. The reversal of 2040400206402 is 2046020040402.

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, 7737502 + ... + 7996857.

It is an arithmetic number, because the mean of its divisors is an integer number (255061842780).

Almost surely, 2^{2040400206402} is an apocalyptic number.

2040400206402 is an abundant number, since it is smaller than the sum of its proper divisors (2040589278078).

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

2040400206402 is a wasteful number, since it uses less digits than its factorization.

2040400206402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15755977.

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 2040400206402 its reverse (2046020040402), we get a palindrome (4086420246804).

The spelling of 2040400206402 in words is "two trillion, forty billion, four hundred million, two hundred six thousand, four hundred two".