40387207 has 8 divisors (see below), whose sum is σ = 46276256. Its totient is φ = 34528032.

The previous prime is 40387183. The next prime is 40387229. The reversal of 40387207 is 70278304.

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

It is not a de Polignac number, because 40387207 - 2¹¹ = 40385159 is a prime.

It is a super-2 number, since 2×40387207² = 3262252978521698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40387247) 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, 4488 + ... + 10045.

It is an arithmetic number, because the mean of its divisors is an integer number (5784532).

Almost surely, 2^40387207 is an apocalyptic number.

40387207 is a deficient number, since it is larger than the sum of its proper divisors (5889049).

40387207 is a wasteful number, since it uses less digits than its factorization.

40387207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14937.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 40387207 is about 6355.0929969592. The cubic root of 40387207 is about 343.0951720195.

The spelling of 40387207 in words is "forty million, three hundred eighty-seven thousand, two hundred seven".