1490879305 has 8 divisors (see below), whose sum is σ = 1789273800. Its totient is φ = 1192557696.

The previous prime is 1490879303. The next prime is 1490879309. The reversal of 1490879305 is 5039780941.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 217031824 + 1273847481 = 14732^2 + 35691^2 .

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 1490879305 - 2¹ = 1490879303 is a prime.

It is a super-2 number, since 2×1490879305² = 4445442204154566050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1490879303) 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, 50031 + ... + 74059.

It is an arithmetic number, because the mean of its divisors is an integer number (223659225).

Almost surely, 2^1490879305 is an apocalyptic number.

It is an amenable number.

1490879305 is a deficient number, since it is larger than the sum of its proper divisors (298394495).

1490879305 is a wasteful number, since it uses less digits than its factorization.

1490879305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36443.

The product of its (nonzero) digits is 272160, while the sum is 46.

The square root of 1490879305 is about 38611.9062595982. The cubic root of 1490879305 is about 1142.3893931200.

The spelling of 1490879305 in words is "one billion, four hundred ninety million, eight hundred seventy-nine thousand, three hundred five".