401430451 has 2 divisors, whose sum is σ = 401430452. Its totient is φ = 401430450.

The previous prime is 401430397. The next prime is 401430473. The reversal of 401430451 is 154034104.

It is an a-pointer prime, because the next prime (401430473) can be obtained adding 401430451 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401430451 - 2¹¹ = 401428403 is a prime.

It is a super-2 number, since 2×401430451² = 322292813980126802, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401430251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200715225 + 200715226.

It is an arithmetic number, because the mean of its divisors is an integer number (200715226).

Almost surely, 2^401430451 is an apocalyptic number.

401430451 is a deficient number, since it is larger than the sum of its proper divisors (1).

401430451 is an equidigital number, since it uses as much as digits as its factorization.

401430451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 401430451 is about 20035.7293603203. The cubic root of 401430451 is about 737.6835592505.

Adding to 401430451 its reverse (154034104), we get a palindrome (555464555).

The spelling of 401430451 in words is "four hundred one million, four hundred thirty thousand, four hundred fifty-one".