397672145042 has 8 divisors (see below), whose sum is σ = 597438809532. Its totient is φ = 198525875200.

The previous prime is 397672145033. The next prime is 397672145077. The reversal of 397672145042 is 240541276793.

It can be written as a sum of positive squares in 2 ways, for example, as 322134569761 + 75537575281 = 567569^2 + 274841^2 .

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

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, 155097059 + ... + 155099622.

Almost surely, 2^397672145042 is an apocalyptic number.

397672145042 is a deficient number, since it is larger than the sum of its proper divisors (199766664490).

397672145042 is a wasteful number, since it uses less digits than its factorization.

397672145042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310197324.

The product of its (nonzero) digits is 2540160, while the sum is 50.

The spelling of 397672145042 in words is "three hundred ninety-seven billion, six hundred seventy-two million, one hundred forty-five thousand, forty-two".