990061304 has 8 divisors (see below), whose sum is σ = 1856364960. Its totient is φ = 495030648.

The previous prime is 990061273. The next prime is 990061307. The reversal of 990061304 is 403160099.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990061307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61878824 + ... + 61878839.

It is an arithmetic number, because the mean of its divisors is an integer number (232045620).

Almost surely, 2^990061304 is an apocalyptic number.

It is an amenable number.

990061304 is a deficient number, since it is larger than the sum of its proper divisors (866303656).

990061304 is a wasteful number, since it uses less digits than its factorization.

990061304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123757669 (or 123757665 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 990061304 is about 31465.2396145334. The cubic root of 990061304 is about 996.6760650312.

The spelling of 990061304 in words is "nine hundred ninety million, sixty-one thousand, three hundred four".