1238770490 has 16 divisors (see below), whose sum is σ = 2267580960. Its totient is φ = 487109520.

The previous prime is 1238770457. The next prime is 1238770499. The reversal of 1238770490 is 940778321.

It is not an unprimeable number, because it can be changed into a prime (1238770499) 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, 1049216 + ... + 1050395.

It is an arithmetic number, because the mean of its divisors is an integer number (141723810).

Almost surely, 2^1238770490 is an apocalyptic number.

1238770490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1238770490 is a deficient number, since it is larger than the sum of its proper divisors (1028810470).

1238770490 is a wasteful number, since it uses less digits than its factorization.

1238770490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2099677.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 1238770490 is about 35196.1715247554. The cubic root of 1238770490 is about 1073.9818707226.

The spelling of 1238770490 in words is "one billion, two hundred thirty-eight million, seven hundred seventy thousand, four hundred ninety".