99442250 has 32 divisors (see below), whose sum is σ = 186900480. Its totient is φ = 39618000.

The previous prime is 99442249. The next prime is 99442253. The reversal of 99442250 is 5224499.

It is a super-2 number, since 2×99442250² = 19777522170125000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 99442250.

It is not an unprimeable number, because it can be changed into a prime (99442253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77111 + ... + 78389.

It is an arithmetic number, because the mean of its divisors is an integer number (5840640).

Almost surely, 2^99442250 is an apocalyptic number.

99442250 is a deficient number, since it is larger than the sum of its proper divisors (87458230).

99442250 is a wasteful number, since it uses less digits than its factorization.

99442250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607 (or 1597 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 99442250 is about 9972.0735055454. The cubic root of 99442250 is about 463.2943252819.

The spelling of 99442250 in words is "ninety-nine million, four hundred forty-two thousand, two hundred fifty".