40303974 has 16 divisors (see below), whose sum is σ = 85349808. Its totient is φ = 12644352.

The previous prime is 40303973. The next prime is 40303979. The reversal of 40303974 is 47930304.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303973) 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, 197467 + ... + 197670.

It is an arithmetic number, because the mean of its divisors is an integer number (5334363).

Almost surely, 2^40303974 is an apocalyptic number.

40303974 is an abundant number, since it is smaller than the sum of its proper divisors (45045834).

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

40303974 is a wasteful number, since it uses less digits than its factorization.

40303974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395159.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 40303974 is about 6348.5410922510. The cubic root of 40303974 is about 342.8593177937.

The spelling of 40303974 in words is "forty million, three hundred three thousand, nine hundred seventy-four".