391414142 has 16 divisors (see below), whose sum is σ = 682369920. Its totient is φ = 164905368.

The previous prime is 391414123. The next prime is 391414147. The reversal of 391414142 is 241414193.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (391414147) 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, 236108 + ... + 237759.

It is an arithmetic number, because the mean of its divisors is an integer number (42648120).

Almost surely, 2^391414142 is an apocalyptic number.

391414142 is a deficient number, since it is larger than the sum of its proper divisors (290955778).

391414142 is a wasteful number, since it uses less digits than its factorization.

391414142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473935.

The product of its digits is 3456, while the sum is 29.

The square root of 391414142 is about 19784.1891923829. The cubic root of 391414142 is about 731.4963626807.

The spelling of 391414142 in words is "three hundred ninety-one million, four hundred fourteen thousand, one hundred forty-two".