40099311 has 24 divisors (see below), whose sum is σ = 70091424. Its totient is φ = 21565440.

The previous prime is 40099307. The next prime is 40099313. The reversal of 40099311 is 11399004.

It is not a de Polignac number, because 40099311 - 2² = 40099307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40099313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17650 + ... + 19791.

It is an arithmetic number, because the mean of its divisors is an integer number (2920476).

Almost surely, 2^40099311 is an apocalyptic number.

40099311 is a deficient number, since it is larger than the sum of its proper divisors (29992113).

40099311 is a wasteful number, since it uses less digits than its factorization.

40099311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37471 (or 37468 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The square root of 40099311 is about 6332.4016770890. The cubic root of 40099311 is about 342.2779877914.

The spelling of 40099311 in words is "forty million, ninety-nine thousand, three hundred eleven".