1029621342 has 16 divisors (see below), whose sum is σ = 2069004672. Its totient is φ = 341580120.

The previous prime is 1029621293. The next prime is 1029621347. The reversal of 1029621342 is 2431269201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029621347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 405378 + ... + 407909.

It is an arithmetic number, because the mean of its divisors is an integer number (129312792).

Almost surely, 2^1029621342 is an apocalyptic number.

1029621342 is an abundant number, since it is smaller than the sum of its proper divisors (1039383330).

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

1029621342 is a wasteful number, since it uses less digits than its factorization.

1029621342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813503.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1029621342 is about 32087.7132560112. The cubic root of 1029621342 is about 1009.7778624629. Note that the first 3 decimals are identical.

The spelling of 1029621342 in words is "one billion, twenty-nine million, six hundred twenty-one thousand, three hundred forty-two".