9942492380 has 24 divisors (see below), whose sum is σ = 21233121840. Its totient is φ = 3909589760.

The previous prime is 9942492361. The next prime is 9942492401. The reversal of 9942492380 is 832942499.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4211741 + ... + 4214100.

It is an arithmetic number, because the mean of its divisors is an integer number (884713410).

Almost surely, 2^9942492380 is an apocalyptic number.

It is an amenable number.

9942492380 is an abundant number, since it is smaller than the sum of its proper divisors (11290629460).

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

9942492380 is a wasteful number, since it uses less digits than its factorization.

9942492380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8425909 (or 8425907 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 9942492380 is about 99712.0473162596. The cubic root of 9942492380 is about 2150.2968676065.

The spelling of 9942492380 in words is "nine billion, nine hundred forty-two million, four hundred ninety-two thousand, three hundred eighty".