402440140414 has 24 divisors (see below), whose sum is σ = 654247164960. Its totient is φ = 185576908608.

The previous prime is 402440140373. The next prime is 402440140457. The reversal of 402440140414 is 414041044204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145702 + ... + 908905.

It is an arithmetic number, because the mean of its divisors is an integer number (27260298540).

Almost surely, 2^402440140414 is an apocalyptic number.

402440140414 is a deficient number, since it is larger than the sum of its proper divisors (251807024546).

402440140414 is a wasteful number, since it uses less digits than its factorization.

402440140414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055764 (or 1055751 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 402440140414 its reverse (414041044204), we get a palindrome (816481184618).

The spelling of 402440140414 in words is "four hundred two billion, four hundred forty million, one hundred forty thousand, four hundred fourteen".