40090143 has 8 divisors (see below), whose sum is σ = 53483056. Its totient is φ = 26712000.

The previous prime is 40090123. The next prime is 40090181. The reversal of 40090143 is 34109004.

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

It is not a de Polignac number, because 40090143 - 2⁵ = 40090111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40090103) 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, 7443 + ... + 11643.

It is an arithmetic number, because the mean of its divisors is an integer number (6685382).

Almost surely, 2^40090143 is an apocalyptic number.

40090143 is a deficient number, since it is larger than the sum of its proper divisors (13392913).

40090143 is a wasteful number, since it uses less digits than its factorization.

40090143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7385.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 40090143 is about 6331.6777397464. The cubic root of 40090143 is about 342.2519005288.

Adding to 40090143 its reverse (34109004), we get a palindrome (74199147).

The spelling of 40090143 in words is "forty million, ninety thousand, one hundred forty-three".