906231942 has 128 divisors (see below), whose sum is σ = 2643148800. Its totient is φ = 222976800.

The previous prime is 906231913. The next prime is 906231967. The reversal of 906231942 is 249132609.

It is a junction number, because it is equal to n+sod(n) for n = 906231897 and 906231906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 73267 + ... + 84737.

It is an arithmetic number, because the mean of its divisors is an integer number (20649600).

Almost surely, 2^906231942 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 906231942, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321574400).

906231942 is an abundant number, since it is smaller than the sum of its proper divisors (1736916858).

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

906231942 is a wasteful number, since it uses less digits than its factorization.

906231942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519 (or 11513 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 906231942 is about 30103.6865184316. The cubic root of 906231942 is about 967.7127325013.

The spelling of 906231942 in words is "nine hundred six million, two hundred thirty-one thousand, nine hundred forty-two".