102049490 has 8 divisors (see below), whose sum is σ = 183689100. Its totient is φ = 40819792.

The previous prime is 102049481. The next prime is 102049537. The reversal of 102049490 is 94940201.

It can be written as a sum of positive squares in 2 ways, for example, as 100982401 + 1067089 = 10049^2 + 1033^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5102465 + ... + 5102484.

Almost surely, 2^102049490 is an apocalyptic number.

102049490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102049490 is a deficient number, since it is larger than the sum of its proper divisors (81639610).

102049490 is a wasteful number, since it uses less digits than its factorization.

102049490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10204956.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 102049490 is about 10101.9547613321. The cubic root of 102049490 is about 467.3084271365.

Adding to 102049490 its reverse (94940201), we get a palindrome (196989691).

The spelling of 102049490 in words is "one hundred two million, forty-nine thousand, four hundred ninety".