401429407 has 2 divisors, whose sum is σ = 401429408. Its totient is φ = 401429406.

The previous prime is 401429387. The next prime is 401429429. The reversal of 401429407 is 704924104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401429407 - 2¹⁹ = 400905119 is a prime.

It is a super-2 number, since 2×401429407² = 322291137608743298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401429807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200714703 + 200714704.

It is an arithmetic number, because the mean of its divisors is an integer number (200714704).

Almost surely, 2^401429407 is an apocalyptic number.

401429407 is a deficient number, since it is larger than the sum of its proper divisors (1).

401429407 is an equidigital number, since it uses as much as digits as its factorization.

401429407 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 401429407 is about 20035.7033068470. The cubic root of 401429407 is about 737.6829197522.

The spelling of 401429407 in words is "four hundred one million, four hundred twenty-nine thousand, four hundred seven".