400153043 has 8 divisors (see below), whose sum is σ = 408914688. Its totient is φ = 391485384.

The previous prime is 400153037. The next prime is 400153051. The reversal of 400153043 is 340351004.

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

It is a cyclic number.

It is not a de Polignac number, because 400153043 - 2⁴ = 400153027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (400153063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14855 + ... + 31952.

It is an arithmetic number, because the mean of its divisors is an integer number (51114336).

Almost surely, 2^400153043 is an apocalyptic number.

400153043 is a deficient number, since it is larger than the sum of its proper divisors (8761645).

400153043 is a wasteful number, since it uses less digits than its factorization.

400153043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46993.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 400153043 is about 20003.8257090987. The cubic root of 400153043 is about 736.9002569516.

The spelling of 400153043 in words is "four hundred million, one hundred fifty-three thousand, forty-three".