425789390 has 32 divisors (see below), whose sum is σ = 827910720. Its totient is φ = 156731904.

The previous prime is 425789389. The next prime is 425789443. The reversal of 425789390 is 93987524.

It is a happy number.

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, 38951 + ... + 48669.

It is an arithmetic number, because the mean of its divisors is an integer number (25872210).

Almost surely, 2^425789390 is an apocalyptic number.

425789390 is a deficient number, since it is larger than the sum of its proper divisors (402121330).

425789390 is a wasteful number, since it uses less digits than its factorization.

425789390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10076.

The product of its (nonzero) digits is 544320, while the sum is 47.

The square root of 425789390 is about 20634.6647658740. The cubic root of 425789390 is about 752.3125009759.

The spelling of 425789390 in words is "four hundred twenty-five million, seven hundred eighty-nine thousand, three hundred ninety".