1374651618 has 16 divisors (see below), whose sum is σ = 2761417440. Its totient is φ = 456198176.

The previous prime is 1374651617. The next prime is 1374651673. The reversal of 1374651618 is 8161564731.

1374651618 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 1374651618.

It is not an unprimeable number, because it can be changed into a prime (1374651613) 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, 503283 + ... + 506006.

It is an arithmetic number, because the mean of its divisors is an integer number (172588590).

Almost surely, 2^1374651618 is an apocalyptic number.

1374651618 is an abundant number, since it is smaller than the sum of its proper divisors (1386765822).

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

1374651618 is a wasteful number, since it uses less digits than its factorization.

1374651618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009521.

The product of its digits is 120960, while the sum is 42.

The square root of 1374651618 is about 37076.2945559558. The cubic root of 1374651618 is about 1111.8961228510.

The spelling of 1374651618 in words is "one billion, three hundred seventy-four million, six hundred fifty-one thousand, six hundred eighteen".