400285373 has 2 divisors, whose sum is σ = 400285374. Its totient is φ = 400285372.

The previous prime is 400285363. The next prime is 400285381. The reversal of 400285373 is 373582004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 343101529 + 57183844 = 18523^2 + 7562^2 .

It is a cyclic number.

It is not a de Polignac number, because 400285373 - 2¹⁴ = 400268989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400285363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200142686 + 200142687.

It is an arithmetic number, because the mean of its divisors is an integer number (200142687).

Almost surely, 2^400285373 is an apocalyptic number.

It is an amenable number.

400285373 is a deficient number, since it is larger than the sum of its proper divisors (1).

400285373 is an equidigital number, since it uses as much as digits as its factorization.

400285373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 400285373 is about 20007.1330529889. The cubic root of 400285373 is about 736.9814785954.

The spelling of 400285373 in words is "four hundred million, two hundred eighty-five thousand, three hundred seventy-three".