99497040 has 40 divisors (see below), whose sum is σ = 308441568. Its totient is φ = 26532480.

The previous prime is 99497009. The next prime is 99497113. The reversal of 99497040 is 4079499.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 99496983 and 99497001.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 207046 + ... + 207525.

Almost surely, 2^99497040 is an apocalyptic number.

It is an amenable number.

99497040 is an abundant number, since it is smaller than the sum of its proper divisors (208944528).

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

99497040 is a wasteful number, since it uses less digits than its factorization.

99497040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414587 (or 414581 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 99497040 is about 9974.8202991332. The cubic root of 99497040 is about 463.3793972225.

The spelling of 99497040 in words is "ninety-nine million, four hundred ninety-seven thousand, forty".