42934155390 has 192 divisors, whose sum is σ = 130767436800. Its totient is φ = 9568806912.

The previous prime is 42934155389. The next prime is 42934155409. The reversal of 42934155390 is 9355143924.

42934155390 is a `hidden beast` number, since 4 + 2 + 9 + 3 + 4 + 1 + 553 + 90 = 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 95 ways as a sum of consecutive naturals, for example, 22727566 + ... + 22729454.

It is an arithmetic number, because the mean of its divisors is an integer number (681080400).

Almost surely, 2^42934155390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42934155390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65383718400).

42934155390 is an abundant number, since it is smaller than the sum of its proper divisors (87833281410).

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

42934155390 is a wasteful number, since it uses less digits than its factorization.

42934155390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791 (or 2788 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The spelling of 42934155390 in words is "forty-two billion, nine hundred thirty-four million, one hundred fifty-five thousand, three hundred ninety".