133998949420 has 48 divisors (see below), whose sum is σ = 321677088768. Its totient is φ = 45931124160.

The previous prime is 133998949393. The next prime is 133998949471. The reversal of 133998949420 is 24949899331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459129 + ... + 691951.

It is an arithmetic number, because the mean of its divisors is an integer number (6701606016).

Almost surely, 2^133998949420 is an apocalyptic number.

133998949420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133998949420 is an abundant number, since it is smaller than the sum of its proper divisors (187678139348).

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

133998949420 is a wasteful number, since it uses less digits than its factorization.

133998949420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236950 (or 236948 counting only the distinct ones).

The product of its (nonzero) digits is 15116544, while the sum is 61.

The spelling of 133998949420 in words is "one hundred thirty-three billion, nine hundred ninety-eight million, nine hundred forty-nine thousand, four hundred twenty".