400231126 has 8 divisors (see below), whose sum is σ = 610188624. Its totient is φ = 196834920.

The previous prime is 400231099. The next prime is 400231127. The reversal of 400231126 is 621132004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×400231126³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (400231127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640170 + ... + 1640413.

It is an arithmetic number, because the mean of its divisors is an integer number (76273578).

Almost surely, 2^400231126 is an apocalyptic number.

400231126 is a deficient number, since it is larger than the sum of its proper divisors (209957498).

400231126 is a wasteful number, since it uses less digits than its factorization.

400231126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280646.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 400231126 is about 20005.7773155656. Note that the first 3 decimals coincide. The cubic root of 400231126 is about 736.9481849811.

The spelling of 400231126 in words is "four hundred million, two hundred thirty-one thousand, one hundred twenty-six".