102307490 has 32 divisors (see below), whose sum is σ = 189131760. Its totient is φ = 39829504.

The previous prime is 102307477. The next prime is 102307501. The reversal of 102307490 is 94703201.

It can be written as a sum of positive squares in 8 ways, for example, as 26739241 + 75568249 = 5171^2 + 8693^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71906 + ... + 73314.

Almost surely, 2^102307490 is an apocalyptic number.

102307490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102307490 is a deficient number, since it is larger than the sum of its proper divisors (86824270).

102307490 is a wasteful number, since it uses less digits than its factorization.

102307490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 102307490 is about 10114.7165061607. The cubic root of 102307490 is about 467.7019097910.

The spelling of 102307490 in words is "one hundred two million, three hundred seven thousand, four hundred ninety".