890228742 has 32 divisors (see below), whose sum is σ = 1962014208. Its totient is φ = 267545376.

The previous prime is 890228723. The next prime is 890228761. The reversal of 890228742 is 247822098.

It is an interprime number because it is at equal distance from previous prime (890228723) and next prime (890228761).

It is a junction number, because it is equal to n+sod(n) for n = 890228694 and 890228703.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129358 + ... + 136065.

It is an arithmetic number, because the mean of its divisors is an integer number (61312944).

Almost surely, 2^890228742 is an apocalyptic number.

890228742 is an abundant number, since it is smaller than the sum of its proper divisors (1071785466).

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

890228742 is a wasteful number, since it uses less digits than its factorization.

890228742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265484.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 890228742 is about 29836.7012586847. The cubic root of 890228742 is about 961.9825716533.

The spelling of 890228742 in words is "eight hundred ninety million, two hundred twenty-eight thousand, seven hundred forty-two".