1402442013 has 32 divisors (see below), whose sum is σ = 2269672704. Its totient is φ = 751951872.

The previous prime is 1402441967. The next prime is 1402442021. The reversal of 1402442013 is 3102442041.

It is not a de Polignac number, because 1402442013 - 2⁶ = 1402441949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402442113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114481 + ... + 126137.

It is an arithmetic number, because the mean of its divisors is an integer number (70927272).

Almost surely, 2^1402442013 is an apocalyptic number.

It is an amenable number.

1402442013 is a deficient number, since it is larger than the sum of its proper divisors (867230691).

1402442013 is a wasteful number, since it uses less digits than its factorization.

1402442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12021.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 1402442013 is about 37449.1924211992. The cubic root of 1402442013 is about 1119.3390054364.

Adding to 1402442013 its reverse (3102442041), we get a palindrome (4504884054).

The spelling of 1402442013 in words is "one billion, four hundred two million, four hundred forty-two thousand, thirteen".