406774044 has 36 divisors (see below), whose sum is σ = 1072942416. Its totient is φ = 129695808.

The previous prime is 406774013. The next prime is 406774057. The reversal of 406774044 is 440477604.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×406774044² = 330930245744227872, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244809 + ... + 246464.

It is an arithmetic number, because the mean of its divisors is an integer number (29803956).

Almost surely, 2^406774044 is an apocalyptic number.

It is an amenable number.

406774044 is an abundant number, since it is smaller than the sum of its proper divisors (666168372).

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

406774044 is a wasteful number, since it uses less digits than its factorization.

406774044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491306 (or 491301 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 36.

The square root of 406774044 is about 20168.6401128088. The cubic root of 406774044 is about 740.9423373532.

The spelling of 406774044 in words is "four hundred six million, seven hundred seventy-four thousand, forty-four".