1357242018 has 32 divisors (see below), whose sum is σ = 3011454720. Its totient is φ = 404313360.

The previous prime is 1357242011. The next prime is 1357242023. The reversal of 1357242018 is 8102427531.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a self number, because there is not a number n which added to its sum of digits gives 1357242018.

It is not an unprimeable number, because it can be changed into a prime (1357242011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170380 + ... + 178167.

It is an arithmetic number, because the mean of its divisors is an integer number (94107960).

Almost surely, 2^1357242018 is an apocalyptic number.

1357242018 is an abundant number, since it is smaller than the sum of its proper divisors (1654212702).

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

1357242018 is a wasteful number, since it uses less digits than its factorization.

1357242018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348622.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1357242018 is about 36840.7657086549. The cubic root of 1357242018 is about 1107.1822093333.

Adding to 1357242018 its reverse (8102427531), we get a palindrome (9459669549).

The spelling of 1357242018 in words is "one billion, three hundred fifty-seven million, two hundred forty-two thousand, eighteen".