40210023 has 32 divisors (see below), whose sum is σ = 64972800. Its totient is φ = 21607776.

The previous prime is 40209989. The next prime is 40210039. The reversal of 40210023 is 32001204.

It is not a de Polignac number, because 40210023 - 2¹⁶ = 40144487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40209990 and 40210008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210063) 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, 71140 + ... + 71702.

It is an arithmetic number, because the mean of its divisors is an integer number (2030400).

Almost surely, 2^40210023 is an apocalyptic number.

40210023 is a deficient number, since it is larger than the sum of its proper divisors (24762777).

40210023 is a wasteful number, since it uses less digits than its factorization.

40210023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 40210023 is about 6341.1373585501. The cubic root of 40210023 is about 342.5927019212.

Adding to 40210023 its reverse (32001204), we get a palindrome (72211227).

The spelling of 40210023 in words is "forty million, two hundred ten thousand, twenty-three".