400053337 has 2 divisors, whose sum is σ = 400053338. Its totient is φ = 400053336.

The previous prime is 400053323. The next prime is 400053371. The reversal of 400053337 is 733350004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243703321 + 156350016 = 15611^2 + 12504^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400053337 is a prime.

It is equal to p_21339034 and since 400053337 and 21339034 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (400053397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200026668 + 200026669.

It is an arithmetic number, because the mean of its divisors is an integer number (200026669).

Almost surely, 2^400053337 is an apocalyptic number.

It is an amenable number.

400053337 is a deficient number, since it is larger than the sum of its proper divisors (1).

400053337 is an equidigital number, since it uses as much as digits as its factorization.

400053337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 25.

The square root of 400053337 is about 20001.3333805524. Note that the first 4 decimals coincide. The cubic root of 400053337 is about 736.8390474706.

The spelling of 400053337 in words is "four hundred million, fifty-three thousand, three hundred thirty-seven".