40247037 has 10 divisors (see below), whose sum is σ = 60122238. Its totient is φ = 26831304.

The previous prime is 40246991. The next prime is 40247047. The reversal of 40247037 is 73074204.

It can be written as a sum of positive squares in only one way, i.e., 39803481 + 443556 = 6309^2 + 666^2 .

It is not a de Polignac number, because 40247037 - 2¹¹ = 40244989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 40247037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40247047) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 248358 + ... + 248519.

Almost surely, 2^40247037 is an apocalyptic number.

It is an amenable number.

40247037 is a deficient number, since it is larger than the sum of its proper divisors (19875201).

40247037 is an equidigital number, since it uses as much as digits as its factorization.

40247037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496889 (or 496880 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 40247037 is about 6344.0552488136. The cubic root of 40247037 is about 342.6977904569.

The spelling of 40247037 in words is "forty million, two hundred forty-seven thousand, thirty-seven".