1298147390 has 32 divisors (see below), whose sum is σ = 2385917856. Its totient is φ = 508426240.

The previous prime is 1298147377. The next prime is 1298147399. The reversal of 1298147390 is 937418921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298147399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86870 + ... + 100710.

It is an arithmetic number, because the mean of its divisors is an integer number (74559933).

Almost surely, 2^1298147390 is an apocalyptic number.

1298147390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1298147390 is a deficient number, since it is larger than the sum of its proper divisors (1087770466).

1298147390 is a wasteful number, since it uses less digits than its factorization.

1298147390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14044.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1298147390 is about 36029.8125168589. The cubic root of 1298147390 is about 1090.8741941888.

The spelling of 1298147390 in words is "one billion, two hundred ninety-eight million, one hundred forty-seven thousand, three hundred ninety".