400226460 has 48 divisors (see below), whose sum is σ = 1123132416. Its totient is φ = 106489152.

The previous prime is 400226459. The next prime is 400226467. The reversal of 400226460 is 64622004.

It is a self number, because there is not a number n which added to its sum of digits gives 400226460.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400226467) 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, 20577 + ... + 34983.

It is an arithmetic number, because the mean of its divisors is an integer number (23398592).

Almost surely, 2^400226460 is an apocalyptic number.

It is an amenable number.

400226460 is an abundant number, since it is smaller than the sum of its proper divisors (722905956).

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

400226460 is a wasteful number, since it uses less digits than its factorization.

400226460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14882 (or 14880 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 400226460 is about 20005.6606989122. The cubic root of 400226460 is about 736.9453211246.

Adding to 400226460 its reverse (64622004), we get a palindrome (464848464).

The spelling of 400226460 in words is "four hundred million, two hundred twenty-six thousand, four hundred sixty".