1357432198 has 8 divisors (see below), whose sum is σ = 2037062808. Its totient is φ = 678411264.

The previous prime is 1357432171. The next prime is 1357432199. The reversal of 1357432198 is 8912347531.

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

It is a super-2 number, since 2×1357432198² = 3685244344334222408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1357432199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 146811 + ... + 155782.

It is an arithmetic number, because the mean of its divisors is an integer number (254632851).

Almost surely, 2^1357432198 is an apocalyptic number.

1357432198 is a deficient number, since it is larger than the sum of its proper divisors (679630610).

1357432198 is a wasteful number, since it uses less digits than its factorization.

1357432198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304838.

The product of its digits is 181440, while the sum is 43.

The square root of 1357432198 is about 36843.3467263765. The cubic root of 1357432198 is about 1107.2339205918.

The spelling of 1357432198 in words is "one billion, three hundred fifty-seven million, four hundred thirty-two thousand, one hundred ninety-eight".