406149699 has 4 divisors (see below), whose sum is σ = 541532936. Its totient is φ = 270766464.

The previous prime is 406149697. The next prime is 406149707. The reversal of 406149699 is 996941604.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 406149699 - 2¹ = 406149697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406149691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67691614 + ... + 67691619.

It is an arithmetic number, because the mean of its divisors is an integer number (135383234).

Almost surely, 2^406149699 is an apocalyptic number.

406149699 is a deficient number, since it is larger than the sum of its proper divisors (135383237).

406149699 is a wasteful number, since it uses less digits than its factorization.

406149699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135383236.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 406149699 is about 20153.1560555661. The cubic root of 406149699 is about 740.5630600196.

The spelling of 406149699 in words is "four hundred six million, one hundred forty-nine thousand, six hundred ninety-nine".