99400994 has 32 divisors (see below), whose sum is σ = 188531712. Its totient is φ = 38178000.

The previous prime is 99400991. The next prime is 99401011. The reversal of 99400994 is 49900499.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (99400991) 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, 6389 + ... + 15479.

It is an arithmetic number, because the mean of its divisors is an integer number (5891616).

Almost surely, 2^99400994 is an apocalyptic number.

99400994 is a deficient number, since it is larger than the sum of its proper divisors (89130718).

99400994 is a wasteful number, since it uses less digits than its factorization.

99400994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9182.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 99400994 is about 9970.0047141413. The cubic root of 99400994 is about 463.2302468359.

It can be divided in two parts, 99400 and 994, that multiplied together give a square (98803600 = 9940²).

The spelling of 99400994 in words is "ninety-nine million, four hundred thousand, nine hundred ninety-four".