406421067 has 16 divisors (see below), whose sum is σ = 602405888. Its totient is φ = 242036640.

The previous prime is 406421021. The next prime is 406421107. The reversal of 406421067 is 760124604.

It is not a de Polignac number, because 406421067 - 2¹⁰ = 406420043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (406411067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 166873 + ... + 169290.

It is an arithmetic number, because the mean of its divisors is an integer number (37650368).

Almost surely, 2^406421067 is an apocalyptic number.

406421067 is a deficient number, since it is larger than the sum of its proper divisors (195984821).

406421067 is a wasteful number, since it uses less digits than its factorization.

406421067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336210.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 406421067 is about 20159.8875740913. The cubic root of 406421067 is about 740.7279584758.

The spelling of 406421067 in words is "four hundred six million, four hundred twenty-one thousand, sixty-seven".