945551406 has 8 divisors (see below), whose sum is σ = 1891102824. Its totient is φ = 315183800.

The previous prime is 945551377. The next prime is 945551417. The reversal of 945551406 is 604155549.

It is a sphenic number, since it is the product of 3 distinct primes.

945551406 is an admirable number.

It is a super-2 number, since 2×945551406² = 1788134922777153672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78795945 + ... + 78795956.

It is an arithmetic number, because the mean of its divisors is an integer number (236387853).

Almost surely, 2^945551406 is an apocalyptic number.

945551406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

945551406 is a wasteful number, since it uses less digits than its factorization.

945551406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157591906.

The product of its (nonzero) digits is 108000, while the sum is 39.

The square root of 945551406 is about 30749.8196092270. The cubic root of 945551406 is about 981.5107221452.

The spelling of 945551406 in words is "nine hundred forty-five million, five hundred fifty-one thousand, four hundred six".