425172998 has 32 divisors (see below), whose sum is σ = 684011520. Its totient is φ = 197858880.

The previous prime is 425172977. The next prime is 425173003. The reversal of 425172998 is 899271524.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170690 + ... + 173162.

It is an arithmetic number, because the mean of its divisors is an integer number (21375360).

Almost surely, 2^425172998 is an apocalyptic number.

425172998 is a deficient number, since it is larger than the sum of its proper divisors (258838522).

425172998 is a wasteful number, since it uses less digits than its factorization.

425172998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its digits is 362880, while the sum is 47.

The square root of 425172998 is about 20619.7235190000. The cubic root of 425172998 is about 751.9492984434.

The spelling of 425172998 in words is "four hundred twenty-five million, one hundred seventy-two thousand, nine hundred ninety-eight".