90300019492 has 48 divisors (see below), whose sum is σ = 167796478080. Its totient is φ = 42433661952.

The previous prime is 90300019489. The next prime is 90300019493. The reversal of 90300019492 is 29491000309.

It is not an unprimeable number, because it can be changed into a prime (90300019493) 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, 1204038 + ... + 1276834.

It is an arithmetic number, because the mean of its divisors is an integer number (3495759960).

Almost surely, 2^90300019492 is an apocalyptic number.

90300019492 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

90300019492 is a deficient number, since it is larger than the sum of its proper divisors (77496458588).

90300019492 is a wasteful number, since it uses less digits than its factorization.

90300019492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73060 (or 73058 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 90300019492 in words is "ninety billion, three hundred million, nineteen thousand, four hundred ninety-two".