402244042040 has 32 divisors (see below), whose sum is σ = 907149015360. Its totient is φ = 160524297600.

The previous prime is 402244042027. The next prime is 402244042043. The reversal of 402244042040 is 40240442204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402244042043) 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, 11648771 + ... + 11683250.

It is an arithmetic number, because the mean of its divisors is an integer number (28348406730).

Almost surely, 2^402244042040 is an apocalyptic number.

402244042040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402244042040 is an abundant number, since it is smaller than the sum of its proper divisors (504904973320).

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

402244042040 is a wasteful number, since it uses less digits than its factorization.

402244042040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23332463 (or 23332459 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 402244042040 its reverse (40240442204), we get a palindrome (442484484244).

The spelling of 402244042040 in words is "four hundred two billion, two hundred forty-four million, forty-two thousand, forty".