1040212342 has 16 divisors (see below), whose sum is σ = 1768782960. Its totient is φ = 454829472.

The previous prime is 1040212307. The next prime is 1040212343. The reversal of 1040212342 is 2432120401.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040212343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052353 + ... + 1053340.

It is an arithmetic number, because the mean of its divisors is an integer number (110548935).

Almost surely, 2^1040212342 is an apocalyptic number.

1040212342 is a deficient number, since it is larger than the sum of its proper divisors (728570618).

1040212342 is a wasteful number, since it uses less digits than its factorization.

1040212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105727.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1040212342 is about 32252.3230481155. The cubic root of 1040212342 is about 1013.2283530682.

Adding to 1040212342 its reverse (2432120401), we get a palindrome (3472332743).

The spelling of 1040212342 in words is "one billion, forty million, two hundred twelve thousand, three hundred forty-two".