40145703 has 32 divisors (see below), whose sum is σ = 60673536. Its totient is φ = 23442048.

The previous prime is 40145701. The next prime is 40145711. The reversal of 40145703 is 30754104.

It is not a de Polignac number, because 40145703 - 2¹ = 40145701 is a prime.

It is a super-2 number, since 2×40145703² = 3223354938728418, 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 polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61726 + ... + 62372.

It is an arithmetic number, because the mean of its divisors is an integer number (1896048).

Almost surely, 2^40145703 is an apocalyptic number.

40145703 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

40145703 is a deficient number, since it is larger than the sum of its proper divisors (20527833).

40145703 is a wasteful number, since it uses less digits than its factorization.

40145703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 743.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 40145703 is about 6336.0636833921. The cubic root of 40145703 is about 342.4099338718.

Adding to 40145703 its reverse (30754104), we get a palindrome (70899807).

The spelling of 40145703 in words is "forty million, one hundred forty-five thousand, seven hundred three".