102354440 has 16 divisors (see below), whose sum is σ = 230297580. Its totient is φ = 40941760.

The previous prime is 102354431. The next prime is 102354479. The reversal of 102354440 is 44453201.

It can be written as a sum of positive squares in 2 ways, for example, as 86081284 + 16273156 = 9278^2 + 4034^2 .

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 3 ways as a sum of consecutive naturals, for example, 1279391 + ... + 1279470.

Almost surely, 2^102354440 is an apocalyptic number.

102354440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102354440 is an abundant number, since it is smaller than the sum of its proper divisors (127943140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102354440 is a wasteful number, since it uses less digits than its factorization.

102354440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2558872 (or 2558868 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 102354440 is about 10117.0371156777. The cubic root of 102354440 is about 467.7734433170.

The spelling of 102354440 in words is "one hundred two million, three hundred fifty-four thousand, four hundred forty".