197425642 has 8 divisors (see below), whose sum is σ = 303025536. Its totient is φ = 96417132.

The previous prime is 197425633. The next prime is 197425681. The reversal of 197425642 is 246524791.

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

It is a super-2 number, since 2×197425642² = 77953768238224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 197425595 and 197425604.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1147738 + ... + 1147909.

It is an arithmetic number, because the mean of its divisors is an integer number (37878192).

Almost surely, 2^197425642 is an apocalyptic number.

197425642 is a deficient number, since it is larger than the sum of its proper divisors (105599894).

197425642 is a wasteful number, since it uses less digits than its factorization.

197425642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295692.

The product of its digits is 120960, while the sum is 40.

The square root of 197425642 is about 14050.8235345833. The cubic root of 197425642 is about 582.2835480604.

The spelling of 197425642 in words is "one hundred ninety-seven million, four hundred twenty-five thousand, six hundred forty-two".