40393254 has 48 divisors (see below), whose sum is σ = 90500544. Its totient is φ = 11919600.

The previous prime is 40393247. The next prime is 40393277. The reversal of 40393254 is 45239304.

It is a super-2 number, since 2×40393254² = 3263229937417032, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121869 + ... + 122199.

It is an arithmetic number, because the mean of its divisors is an integer number (1885428).

Almost surely, 2^40393254 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40393254, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45250272).

40393254 is an abundant number, since it is smaller than the sum of its proper divisors (50107290).

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

40393254 is a wasteful number, since it uses less digits than its factorization.

40393254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433 (or 390 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 40393254 is about 6355.5687393026. The cubic root of 40393254 is about 343.1122945452.

The spelling of 40393254 in words is "forty million, three hundred ninety-three thousand, two hundred fifty-four".