1395557042 has 16 divisors (see below), whose sum is σ = 2307184992. Its totient is φ = 627803520.

The previous prime is 1395557027. The next prime is 1395557063. The reversal of 1395557042 is 2407555931.

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, 324848 + ... + 329115.

It is an arithmetic number, because the mean of its divisors is an integer number (144199062).

Almost surely, 2^1395557042 is an apocalyptic number.

1395557042 is a deficient number, since it is larger than the sum of its proper divisors (911627950).

1395557042 is a wasteful number, since it uses less digits than its factorization.

1395557042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654073.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 1395557042 is about 37357.1551647071. The cubic root of 1395557042 is about 1117.5042861101.

The spelling of 1395557042 in words is "one billion, three hundred ninety-five million, five hundred fifty-seven thousand, forty-two".