43274628540 has 384 divisors, whose sum is σ = 160779709440. Its totient is φ = 9524044800.

The previous prime is 43274628539. The next prime is 43274628637. The reversal of 43274628540 is 4582647234.

It is a happy number.

43274628540 is a `hidden beast` number, since 4 + 32 + 74 + 6 + 2 + 8 + 540 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4705827 + ... + 4715013.

It is an arithmetic number, because the mean of its divisors is an integer number (418697160).

Almost surely, 2^43274628540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43274628540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80389854720).

43274628540 is an abundant number, since it is smaller than the sum of its proper divisors (117505080900).

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

43274628540 is a wasteful number, since it uses less digits than its factorization.

43274628540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9290 (or 9282 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 45.

The spelling of 43274628540 in words is "forty-three billion, two hundred seventy-four million, six hundred twenty-eight thousand, five hundred forty".