43249708398420 has 72 divisors (see below), whose sum is σ = 135422742873600. Its totient is φ = 11161215069120.

The previous prime is 43249708398353. The next prime is 43249708398439. The reversal of 43249708398420 is 2489380794234.

43249708398420 is a `hidden beast` number, since 4 + 3 + 2 + 49 + 7 + 0 + 83 + 98 + 420 = 666.

It is a super-2 number, since 2×43249708398420² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3875416320 + ... + 3875427479.

It is an arithmetic number, because the mean of its divisors is an integer number (1880871428800).

Almost surely, 2^{43249708398420} is an apocalyptic number.

It is an amenable number.

43249708398420 is an abundant number, since it is smaller than the sum of its proper divisors (92173034475180).

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

43249708398420 is a wasteful number, since it uses less digits than its factorization.

43249708398420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7750843845 (or 7750843840 counting only the distinct ones).

The product of its (nonzero) digits is 83607552, while the sum is 63.

The spelling of 43249708398420 in words is "forty-three trillion, two hundred forty-nine billion, seven hundred eight million, three hundred ninety-eight thousand, four hundred twenty".