400107340 has 12 divisors (see below), whose sum is σ = 840225456. Its totient is φ = 160042928.

The previous prime is 400107329. The next prime is 400107341. The reversal of 400107340 is 43701004.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (400107341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10002664 + ... + 10002703.

It is an arithmetic number, because the mean of its divisors is an integer number (70018788).

Almost surely, 2^400107340 is an apocalyptic number.

It is an amenable number.

400107340 is an abundant number, since it is smaller than the sum of its proper divisors (440118116).

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

400107340 is a wasteful number, since it uses less digits than its factorization.

400107340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20005376 (or 20005374 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 400107340 is about 20002.6833199948. The cubic root of 400107340 is about 736.8722011571.

Adding to 400107340 its reverse (43701004), we get a palindrome (443808344).

The spelling of 400107340 in words is "four hundred million, one hundred seven thousand, three hundred forty".