40669776 has 100 divisors (see below), whose sum is σ = 134555872. Its totient is φ = 11617344.

The previous prime is 40669757. The next prime is 40669777. The reversal of 40669776 is 67796604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40669777) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6831 + ... + 11313.

Almost surely, 2^40669776 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40669776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67277936).

40669776 is an abundant number, since it is smaller than the sum of its proper divisors (93886096).

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

40669776 is a wasteful number, since it uses less digits than its factorization.

40669776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510 (or 4495 counting only the distinct ones).

The product of its (nonzero) digits is 381024, while the sum is 45.

The square root of 40669776 is about 6377.2859430952. The cubic root of 40669776 is about 343.8934680035.

The spelling of 40669776 in words is "forty million, six hundred sixty-nine thousand, seven hundred seventy-six".