949389019 has 4 divisors (see below), whose sum is σ = 958099120. Its totient is φ = 940678920.

The previous prime is 949388977. The next prime is 949389029. The reversal of 949389019 is 910983949.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 949389019 - 2¹⁵ = 949356251 is a prime.

It is a super-2 number, since 2×949389019² = 1802679018795564722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (949389029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4354887 + ... + 4355104.

It is an arithmetic number, because the mean of its divisors is an integer number (239524780).

Almost surely, 2^949389019 is an apocalyptic number.

949389019 is a deficient number, since it is larger than the sum of its proper divisors (8710101).

949389019 is a wasteful number, since it uses less digits than its factorization.

949389019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8710100.

The product of its (nonzero) digits is 629856, while the sum is 52.

The square root of 949389019 is about 30812.1570001193. The cubic root of 949389019 is about 982.8367822473.

The spelling of 949389019 in words is "nine hundred forty-nine million, three hundred eighty-nine thousand, nineteen".