1357880242 has 8 divisors (see below), whose sum is σ = 2091869676. Its totient is φ = 660590352.

The previous prime is 1357880231. The next prime is 1357880261. The reversal of 1357880242 is 2420887531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 987279241 + 370601001 = 31421^2 + 19251^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1357880242² = 3687677503227957128, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1357880195 and 1357880204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9174793 + ... + 9174940.

Almost surely, 2^1357880242 is an apocalyptic number.

1357880242 is a deficient number, since it is larger than the sum of its proper divisors (733989434).

1357880242 is a wasteful number, since it uses less digits than its factorization.

1357880242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18349772.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 1357880242 is about 36849.4266169774. The cubic root of 1357880242 is about 1107.3557277668.

The spelling of 1357880242 in words is "one billion, three hundred fifty-seven million, eight hundred eighty thousand, two hundred forty-two".