40794390 has 192 divisors, whose sum is σ = 138692736. Its totient is φ = 8073216.

The previous prime is 40794379. The next prime is 40794427. The reversal of 40794390 is 9349704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 139084 + ... + 139376.

It is an arithmetic number, because the mean of its divisors is an integer number (722358).

Almost surely, 2^40794390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40794390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69346368).

40794390 is an abundant number, since it is smaller than the sum of its proper divisors (97898346).

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

40794390 is a wasteful number, since it uses less digits than its factorization.

40794390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 40794390 is about 6387.0486141879. The cubic root of 40794390 is about 344.2443448330.

It can be divided in two parts, 40 and 794390, that added together give a triangular number (794430 = T₁₂₆₀).

The spelling of 40794390 in words is "forty million, seven hundred ninety-four thousand, three hundred ninety".