1140021402 has 16 divisors (see below), whose sum is σ = 2455430880. Its totient is φ = 350775792.

The previous prime is 1140021397. The next prime is 1140021403. The reversal of 1140021402 is 2041200411.

1140021402 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1140021403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7307752 + ... + 7307907.

It is an arithmetic number, because the mean of its divisors is an integer number (153464430).

Almost surely, 2^1140021402 is an apocalyptic number.

1140021402 is an abundant number, since it is smaller than the sum of its proper divisors (1315409478).

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

1140021402 is a wasteful number, since it uses less digits than its factorization.

1140021402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14615677.

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 1140021402 is about 33764.2029670478. The cubic root of 1140021402 is about 1044.6504640531.

Adding to 1140021402 its reverse (2041200411), we get a palindrome (3181221813).

The spelling of 1140021402 in words is "one billion, one hundred forty million, twenty-one thousand, four hundred two".