1351680042 has 16 divisors (see below), whose sum is σ = 2790565632. Its totient is φ = 436025760.

The previous prime is 1351679993. The next prime is 1351680061. The reversal of 1351680042 is 2400861531.

It is a super-2 number, since 2×1351680042² = 3654077871882243528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1351679991 and 1351680009.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3633363 + ... + 3633734.

It is an arithmetic number, because the mean of its divisors is an integer number (174410352).

Almost surely, 2^1351680042 is an apocalyptic number.

1351680042 is an abundant number, since it is smaller than the sum of its proper divisors (1438885590).

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

1351680042 is a wasteful number, since it uses less digits than its factorization.

1351680042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7267133.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 1351680042 is about 36765.2015090357. The cubic root of 1351680042 is about 1105.6677282537.

The spelling of 1351680042 in words is "one billion, three hundred fifty-one million, six hundred eighty thousand, forty-two".