490739930 has 16 divisors (see below), whose sum is σ = 895774464. Its totient is φ = 193530960.

The previous prime is 490739927. The next prime is 490739933. The reversal of 490739930 is 39937094.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (490739927) and next prime (490739933).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (490739933) 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, 344882 + ... + 346301.

It is an arithmetic number, because the mean of its divisors is an integer number (55985904).

Almost surely, 2^490739930 is an apocalyptic number.

490739930 is a deficient number, since it is larger than the sum of its proper divisors (405034534).

490739930 is a wasteful number, since it uses less digits than its factorization.

490739930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691261.

The product of its (nonzero) digits is 183708, while the sum is 44.

The square root of 490739930 is about 22152.6506314707. The cubic root of 490739930 is about 788.7701474908.

The spelling of 490739930 in words is "four hundred ninety million, seven hundred thirty-nine thousand, nine hundred thirty".