2830721542 has 16 divisors (see below), whose sum is σ = 4668567552. Its totient is φ = 1276558920.

The previous prime is 2830721533. The next prime is 2830721567. The reversal of 2830721542 is 2451270382.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2830721498 and 2830721507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503778 + ... + 509365.

It is an arithmetic number, because the mean of its divisors is an integer number (291785472).

Almost surely, 2^2830721542 is an apocalyptic number.

2830721542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2830721542 is a deficient number, since it is larger than the sum of its proper divisors (1837846010).

2830721542 is a wasteful number, since it uses less digits than its factorization.

2830721542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013283.

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 2830721542 is about 53204.5255781874. The cubic root of 2830721542 is about 1414.5958618937.

The spelling of 2830721542 in words is "two billion, eight hundred thirty million, seven hundred twenty-one thousand, five hundred forty-two".