40145702 has 8 divisors (see below), whose sum is σ = 60652200. Its totient is φ = 19928304.

The previous prime is 40145701. The next prime is 40145711. The reversal of 40145702 is 20754104.

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

It is a super-2 number, since 2×40145702² = 3223354778145608, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40145701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71927 + ... + 72482.

It is an arithmetic number, because the mean of its divisors is an integer number (7581525).

Almost surely, 2^40145702 is an apocalyptic number.

40145702 is a deficient number, since it is larger than the sum of its proper divisors (20506498).

40145702 is a wasteful number, since it uses less digits than its factorization.

40145702 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144550.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 40145702 is about 6336.0636044787. The cubic root of 40145702 is about 342.4099310287.

Adding to 40145702 its reverse (20754104), we get a palindrome (60899806).

The spelling of 40145702 in words is "forty million, one hundred forty-five thousand, seven hundred two".