117949810 has 32 divisors (see below), whose sum is σ = 232828992. Its totient is φ = 42665280.

The previous prime is 117949759. The next prime is 117949847. The reversal of 117949810 is 18949711.

It is a super-2 number, since 2×117949810² = 27824315358072200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18949 + ... + 24391.

It is an arithmetic number, because the mean of its divisors is an integer number (7275906).

Almost surely, 2^117949810 is an apocalyptic number.

117949810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117949810 is a deficient number, since it is larger than the sum of its proper divisors (114879182).

117949810 is a wasteful number, since it uses less digits than its factorization.

117949810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5658.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 117949810 is about 10860.4700634917. The cubic root of 117949810 is about 490.4172622365.

Subtracting from 117949810 its reverse (18949711), we obtain a palindrome (99000099).

The spelling of 117949810 in words is "one hundred seventeen million, nine hundred forty-nine thousand, eight hundred ten".