40210142 has 8 divisors (see below), whose sum is σ = 68931696. Its totient is φ = 17232912.

The previous prime is 40210133. The next prime is 40210147. The reversal of 40210142 is 24101204.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 2872153 = 40210142 / (4 + 0 + 2 + 1 + 0 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40210147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1436063 + ... + 1436090.

It is an arithmetic number, because the mean of its divisors is an integer number (8616462).

Almost surely, 2^40210142 is an apocalyptic number.

40210142 is a deficient number, since it is larger than the sum of its proper divisors (28721554).

40210142 is a wasteful number, since it uses less digits than its factorization.

40210142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2872162.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 40210142 is about 6341.1467417179. The cubic root of 40210142 is about 342.5930398841.

Adding to 40210142 its reverse (24101204), we get a palindrome (64311346).

The spelling of 40210142 in words is "forty million, two hundred ten thousand, one hundred forty-two".