1355405042 has 16 divisors (see below), whose sum is σ = 2153172672. Its totient is φ = 638560560.

The previous prime is 1355405041. The next prime is 1355405057. The reversal of 1355405042 is 2405045531.

It is a junction number, because it is equal to n+sod(n) for n = 1355404996 and 1355405014.

It is not an unprimeable number, because it can be changed into a prime (1355405041) 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, 216809 + ... + 222972.

It is an arithmetic number, because the mean of its divisors is an integer number (134573292).

Almost surely, 2^1355405042 is an apocalyptic number.

1355405042 is a deficient number, since it is larger than the sum of its proper divisors (797767630).

1355405042 is a wasteful number, since it uses less digits than its factorization.

1355405042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439873.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1355405042 is about 36815.8259719920. The cubic root of 1355405042 is about 1106.6824739883.

The spelling of 1355405042 in words is "one billion, three hundred fifty-five million, four hundred five thousand, forty-two".