1373855642 has 8 divisors (see below), whose sum is σ = 2150382816. Its totient is φ = 657061372.

The previous prime is 1373855641. The next prime is 1373855687. The reversal of 1373855642 is 2465583731.

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

It is a junction number, because it is equal to n+sod(n) for n = 1373855593 and 1373855602.

It is not an unprimeable number, because it can be changed into a prime (1373855641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14933168 + ... + 14933259.

It is an arithmetic number, because the mean of its divisors is an integer number (268797852).

Almost surely, 2^1373855642 is an apocalyptic number.

1373855642 is a deficient number, since it is larger than the sum of its proper divisors (776527174).

1373855642 is a wasteful number, since it uses less digits than its factorization.

1373855642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29866452.

The product of its digits is 604800, while the sum is 44.

The square root of 1373855642 is about 37065.5587034649. The cubic root of 1373855642 is about 1111.6814712510.

The spelling of 1373855642 in words is "one billion, three hundred seventy-three million, eight hundred fifty-five thousand, six hundred forty-two".