1642479293 has 64 divisors (see below), whose sum is σ = 2287595520. Its totient is φ = 1141862400.

The previous prime is 1642479269. The next prime is 1642479317. The reversal of 1642479293 is 3929742461.

It is an interprime number because it is at equal distance from previous prime (1642479269) and next prime (1642479317).

It is not a de Polignac number, because 1642479293 - 2¹⁰ = 1642478269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642479203) 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 63 ways as a sum of consecutive naturals, for example, 1390163 + ... + 1391343.

It is an arithmetic number, because the mean of its divisors is an integer number (35743680).

Almost surely, 2^1642479293 is an apocalyptic number.

1642479293 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1642479293 is a deficient number, since it is larger than the sum of its proper divisors (645116227).

1642479293 is a wasteful number, since it uses less digits than its factorization.

1642479293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278.

The product of its digits is 653184, while the sum is 47.

The square root of 1642479293 is about 40527.5127906957. The cubic root of 1642479293 is about 1179.8676699733.

The spelling of 1642479293 in words is "one billion, six hundred forty-two million, four hundred seventy-nine thousand, two hundred ninety-three".