40394010 has 64 divisors (see below), whose sum is σ = 100641024. Its totient is φ = 10368000.

The previous prime is 40393999. The next prime is 40394027. The reversal of 40394010 is 1049304.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 167490 + ... + 167730.

It is an arithmetic number, because the mean of its divisors is an integer number (1572516).

Almost surely, 2^40394010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40394010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50320512).

40394010 is an abundant number, since it is smaller than the sum of its proper divisors (60247014).

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

40394010 is a wasteful number, since it uses less digits than its factorization.

40394010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40394010 is about 6355.6282144254. The cubic root of 40394010 is about 343.1144350946.

The spelling of 40394010 in words is "forty million, three hundred ninety-four thousand, ten".