402411212440 has 64 divisors (see below), whose sum is σ = 913155262560. Its totient is φ = 159593149440.

The previous prime is 402411212419. The next prime is 402411212449. The reversal of 402411212440 is 44212114204.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402411212449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4454359 + ... + 4543801.

Almost surely, 2^402411212440 is an apocalyptic number.

402411212440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

402411212440 is an abundant number, since it is smaller than the sum of its proper divisors (510744050120).

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

402411212440 is a wasteful number, since it uses less digits than its factorization.

402411212440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90412 (or 90408 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 402411212440 its reverse (44212114204), we get a palindrome (446623326644).

The spelling of 402411212440 in words is "four hundred two billion, four hundred eleven million, two hundred twelve thousand, four hundred forty".