1490379973 has 2 divisors, whose sum is σ = 1490379974. Its totient is φ = 1490379972.

The previous prime is 1490379923. The next prime is 1490379983. The reversal of 1490379973 is 3799730941.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 769618564 + 720761409 = 27742^2 + 26847^2 .

It is a cyclic number.

It is not a de Polignac number, because 1490379973 - 2²⁵ = 1456825541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1490379973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1490379923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 745189986 + 745189987.

It is an arithmetic number, because the mean of its divisors is an integer number (745189987).

Almost surely, 2^1490379973 is an apocalyptic number.

It is an amenable number.

1490379973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1490379973 is an equidigital number, since it uses as much as digits as its factorization.

1490379973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1285956, while the sum is 52.

The square root of 1490379973 is about 38605.4396814749. The cubic root of 1490379973 is about 1142.2618408149.

The spelling of 1490379973 in words is "one billion, four hundred ninety million, three hundred seventy-nine thousand, nine hundred seventy-three".