406674040 has 48 divisors (see below), whose sum is σ = 956579400. Its totient is φ = 155588928.

The previous prime is 406674031. The next prime is 406674049. The reversal of 406674040 is 40476604.

It is an interprime number because it is at equal distance from previous prime (406674031) and next prime (406674049).

It is a junction number, because it is equal to n+sod(n) for n = 406673993 and 406674011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406674049) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11551 + ... + 30769.

Almost surely, 2^406674040 is an apocalyptic number.

406674040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 406674040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (478289700).

406674040 is an abundant number, since it is smaller than the sum of its proper divisors (549905360).

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

406674040 is a wasteful number, since it uses less digits than its factorization.

406674040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19276 (or 19249 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 406674040 is about 20166.1607650043. The cubic root of 406674040 is about 740.8816130014.

The spelling of 406674040 in words is "four hundred six million, six hundred seventy-four thousand, forty".