40387111 has 8 divisors (see below), whose sum is σ = 41857200. Its totient is φ = 38922240.

The previous prime is 40387099. The next prime is 40387117. The reversal of 40387111 is 11178304.

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

It is a cyclic number.

It is not a de Polignac number, because 40387111 - 2¹¹ = 40385063 is a prime.

It is a super-2 number, since 2×40387111² = 3262237469852642, 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 (40387117) 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, 21396 + ... + 23206.

It is an arithmetic number, because the mean of its divisors is an integer number (5232150).

Almost surely, 2^40387111 is an apocalyptic number.

40387111 is a deficient number, since it is larger than the sum of its proper divisors (1470089).

40387111 is a wasteful number, since it uses less digits than its factorization.

40387111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2609.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 40387111 is about 6355.0854439575. The cubic root of 40387111 is about 343.0949001746.

The spelling of 40387111 in words is "forty million, three hundred eighty-seven thousand, one hundred eleven".