400143356 has 24 divisors (see below), whose sum is σ = 709287936. Its totient is φ = 197506800.

The previous prime is 400143349. The next prime is 400143371. The reversal of 400143356 is 653341004.

It is a super-2 number, since 2×400143356² = 320229410701885472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98885 + ... + 102851.

It is an arithmetic number, because the mean of its divisors is an integer number (29553664).

Almost surely, 2^400143356 is an apocalyptic number.

It is an amenable number.

400143356 is a deficient number, since it is larger than the sum of its proper divisors (309144580).

400143356 is a wasteful number, since it uses less digits than its factorization.

400143356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4289 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 400143356 is about 20003.5835789490. The cubic root of 400143356 is about 736.8943105514.

The spelling of 400143356 in words is "four hundred million, one hundred forty-three thousand, three hundred fifty-six".