40436994 has 32 divisors (see below), whose sum is σ = 87462144. Its totient is φ = 12389760.

The previous prime is 40436993. The next prime is 40437011. The reversal of 40436994 is 49963404.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (40436993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20182 + ... + 22094.

It is an arithmetic number, because the mean of its divisors is an integer number (2733192).

Almost surely, 2^40436994 is an apocalyptic number.

40436994 is an abundant number, since it is smaller than the sum of its proper divisors (47025150).

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

40436994 is a wasteful number, since it uses less digits than its factorization.

40436994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2202.

The product of its (nonzero) digits is 93312, while the sum is 39.

The square root of 40436994 is about 6359.0088850386. The cubic root of 40436994 is about 343.2360967190.

The spelling of 40436994 in words is "forty million, four hundred thirty-six thousand, nine hundred ninety-four".