1042131402 has 144 divisors (see below), whose sum is σ = 2592615168. Its totient is φ = 301916160.

The previous prime is 1042131367. The next prime is 1042131427. The reversal of 1042131402 is 2041312401.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4054858 + ... + 4055114.

It is an arithmetic number, because the mean of its divisors is an integer number (18004272).

Almost surely, 2^1042131402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042131402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296307584).

1042131402 is an abundant number, since it is smaller than the sum of its proper divisors (1550483766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1042131402 is a wasteful number, since it uses less digits than its factorization.

1042131402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1042131402 is about 32282.0600643763. The cubic root of 1042131402 is about 1013.8510629377.

Adding to 1042131402 its reverse (2041312401), we get a palindrome (3083443803).

The spelling of 1042131402 in words is "one billion, forty-two million, one hundred thirty-one thousand, four hundred two".