406995690 has 16 divisors (see below), whose sum is σ = 976789728. Its totient is φ = 108532176.

The previous prime is 406995689. The next prime is 406995697. The reversal of 406995690 is 96599604.

It is a happy number.

It is a super-3 number, since 3×406995690³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (406995697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6783232 + ... + 6783291.

It is an arithmetic number, because the mean of its divisors is an integer number (61049358).

Almost surely, 2^406995690 is an apocalyptic number.

406995690 is an abundant number, since it is smaller than the sum of its proper divisors (569794038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

406995690 is a wasteful number, since it uses less digits than its factorization.

406995690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13566533.

The product of its (nonzero) digits is 524880, while the sum is 48.

The square root of 406995690 is about 20174.1341821650. The cubic root of 406995690 is about 741.0768896011.

The spelling of 406995690 in words is "four hundred six million, nine hundred ninety-five thousand, six hundred ninety".