990341400 has 48 divisors (see below), whose sum is σ = 3070060200. Its totient is φ = 264090880.

The previous prime is 990341381. The next prime is 990341423. The reversal of 990341400 is 4143099.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 824685 + ... + 825884.

Almost surely, 2^990341400 is an apocalyptic number.

It is an amenable number.

990341400 is an abundant number, since it is smaller than the sum of its proper divisors (2079718800).

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

990341400 is a wasteful number, since it uses less digits than its factorization.

990341400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1650588 (or 1650579 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 990341400 is about 31469.6901795998. The cubic root of 990341400 is about 996.7700452915.

Adding to 990341400 its reverse (4143099), we get a palindrome (994484499).

The spelling of 990341400 in words is "nine hundred ninety million, three hundred forty-one thousand, four hundred".