400430470073 has 2 divisors, whose sum is σ = 400430470074. Its totient is φ = 400430470072.

The previous prime is 400430470067. The next prime is 400430470091. The reversal of 400430470073 is 370074034004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349673534224 + 50756935849 = 591332^2 + 225293^2 .

It is a cyclic number.

It is not a de Polignac number, because 400430470073 - 2⁶ = 400430470009 is a prime.

It is a super-2 number, since 2×400430470073² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (400430470093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200215235036 + 200215235037.

It is an arithmetic number, because the mean of its divisors is an integer number (200215235037).

Almost surely, 2^400430470073 is an apocalyptic number.

It is an amenable number.

400430470073 is a deficient number, since it is larger than the sum of its proper divisors (1).

400430470073 is an equidigital number, since it uses as much as digits as its factorization.

400430470073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 32.

The spelling of 400430470073 in words is "four hundred billion, four hundred thirty million, four hundred seventy thousand, seventy-three".