40247373 has 8 divisors (see below), whose sum is σ = 54543136. Its totient is φ = 26391600.

The previous prime is 40247371. The next prime is 40247399. The reversal of 40247373 is 37374204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40247373 - 2¹ = 40247371 is a prime.

It is a super-2 number, since 2×40247373² = 3239702066802258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40247373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40247371) 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, 109783 + ... + 110148.

It is an arithmetic number, because the mean of its divisors is an integer number (6817892).

Almost surely, 2^40247373 is an apocalyptic number.

It is an amenable number.

40247373 is a deficient number, since it is larger than the sum of its proper divisors (14295763).

40247373 is a wasteful number, since it uses less digits than its factorization.

40247373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219995.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 40247373 is about 6344.0817302428. The cubic root of 40247373 is about 342.6987441183.

The spelling of 40247373 in words is "forty million, two hundred forty-seven thousand, three hundred seventy-three".