99751442 has 16 divisors (see below), whose sum is σ = 175174272. Its totient is φ = 41707680.

The previous prime is 99751441. The next prime is 99751493. The reversal of 99751442 is 24415799.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a self number, because there is not a number n which added to its sum of digits gives 99751442.

It is not an unprimeable number, because it can be changed into a prime (99751441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86318 + ... + 87465.

It is an arithmetic number, because the mean of its divisors is an integer number (10948392).

Almost surely, 2^99751442 is an apocalyptic number.

99751442 is a deficient number, since it is larger than the sum of its proper divisors (75422830).

99751442 is a wasteful number, since it uses less digits than its factorization.

99751442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173833.

The product of its digits is 90720, while the sum is 41.

The square root of 99751442 is about 9987.5643677525. The cubic root of 99751442 is about 463.7739962833.

The spelling of 99751442 in words is "ninety-nine million, seven hundred fifty-one thousand, four hundred forty-two".