425389949 has 8 divisors (see below), whose sum is σ = 431611200. Its totient is φ = 419210496.

The previous prime is 425389931. The next prime is 425389961. The reversal of 425389949 is 949983524.

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

It is a cyclic number.

It is not a de Polignac number, because 425389949 - 2¹⁶ = 425324413 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 425389949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425389049) 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, 10352 + ... + 30950.

It is an arithmetic number, because the mean of its divisors is an integer number (53951400).

Almost surely, 2^425389949 is an apocalyptic number.

It is an amenable number.

425389949 is a deficient number, since it is larger than the sum of its proper divisors (6221251).

425389949 is a wasteful number, since it uses less digits than its factorization.

425389949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20899.

The product of its digits is 2799360, while the sum is 53.

The square root of 425389949 is about 20624.9836121147. The cubic root of 425389949 is about 752.0771745576.

The spelling of 425389949 in words is "four hundred twenty-five million, three hundred eighty-nine thousand, nine hundred forty-nine".