40379784 has 32 divisors (see below), whose sum is σ = 101173920. Its totient is φ = 13430016.

The previous prime is 40379783. The next prime is 40379809. The reversal of 40379784 is 48797304.

It is not an unprimeable number, because it can be changed into a prime (40379783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10944 + ... + 14160.

It is an arithmetic number, because the mean of its divisors is an integer number (3161685).

Almost surely, 2^40379784 is an apocalyptic number.

It is an amenable number.

40379784 is an abundant number, since it is smaller than the sum of its proper divisors (60794136).

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

40379784 is a wasteful number, since it uses less digits than its factorization.

40379784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3745 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 40379784 is about 6354.5089503438. The cubic root of 40379784 is about 343.0741509116.

The spelling of 40379784 in words is "forty million, three hundred seventy-nine thousand, seven hundred eighty-four".