842978514 has 16 divisors (see below), whose sum is σ = 1926808128. Its totient is φ = 240850992.

The previous prime is 842978509. The next prime is 842978519. The reversal of 842978514 is 415879248.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (842978509) and next prime (842978519).

It is a super-2 number, since 2×842978514² = 1421225550131296392, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (842978519) 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, 10035417 + ... + 10035500.

It is an arithmetic number, because the mean of its divisors is an integer number (120425508).

Almost surely, 2^842978514 is an apocalyptic number.

842978514 is an abundant number, since it is smaller than the sum of its proper divisors (1083829614).

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

842978514 is a wasteful number, since it uses less digits than its factorization.

842978514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20070929.

The product of its digits is 645120, while the sum is 48.

The square root of 842978514 is about 29034.0922709838. The cubic root of 842978514 is about 944.6526962046.

The spelling of 842978514 in words is "eight hundred forty-two million, nine hundred seventy-eight thousand, five hundred fourteen".