10409778 has 24 divisors (see below), whose sum is σ = 22696128. Its totient is φ = 3448152.

The previous prime is 10409771. The next prime is 10409779. The reversal of 10409778 is 87790401.

It is not an unprimeable number, because it can be changed into a prime (10409771) 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, 1275 + ... + 4737.

It is an arithmetic number, because the mean of its divisors is an integer number (945672).

Almost surely, 2^10409778 is an apocalyptic number.

10409778 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10409778 is an abundant number, since it is smaller than the sum of its proper divisors (12286350).

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

10409778 is a wasteful number, since it uses less digits than its factorization.

10409778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3638 (or 3635 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 10409778 is about 3226.4187576940. The cubic root of 10409778 is about 218.3469631308.

The spelling of 10409778 in words is "ten million, four hundred nine thousand, seven hundred seventy-eight".